I want to control my emotional ups and downs.

(^o^) ←The face in the photo is tough, so the tone is like this.
Hi ♡ Hello.
Are feelings expressed in words, attitudes, or thoughts?
Even if you don't hate it, it's better to just watch the emotions that come out.
To express emotions,
The worst person will put it into words. “Let's do this”
The second-worst person has an attitude. “Dos dos,” “gatan,” and “batan.”
The third worst person appears blurry in my mind, but luckily they barely show up in their attitudes or words.
The best people keep their distance from it, even when they have feelings.
People who are even better can keep observing events as they are without causing thoughts about them.
Please know that “thoughts come naturally.”
So even with my own thoughts, I don't go head-on and don't handle them one by one.
Don't be swept away by your own emotions.
It's like watching the flow of a river from a distance.
I recommend zazen meditation.
You will now be able to objectively look at your own thoughts, and even if emotions come out, you will be able to skillfully let your emotions roll around while remaining the main character without making them the main character.
If you fall in love with yourself, acknowledge yourself for blatantly depraving your emotions.
Even if you don't force yourself to like it, at least you won't hate it.
Don't light the three fires of denial, pessimism, and criticism in your heart.

　From my experience, it seems that women are more likely to say things clearly. I was often hurt by many people who left it up to their emotions and I was often hurt. Furthermore, it is difficult when nervous and clean-like personalities overlap. They say things out loud without even noticing that the air around them becomes uncomfortable. Furthermore, if I were to express my opinion on that, I would say opinions that try to justify myself. I'm at the point where I'm pulling back. It's difficult to change that person, so I'm taking an apprenticeship as a teacher to prevent that from happening (laughs) (*This is just my personal opinion.)
Momo noticed that, and I think what she wants to do is take a step forward. So let me give you some advice.
① Always, when you wake up in the morning once a day, and after washing your face, do zazen to the extent that you don't feel pain. If you don't know how to do zazen, please attend a zazen session once at a nearby temple that holds zazen sessions. I'm from the Soto sect, so please go for the Soto sect if possible. If the family temple holds such an event, please go there.
② Every night before going to bed, write tomorrow's goals by hand in a notebook. You begin to be aware of this before you know it. Be as specific as possible. (Example) No matter what ○○-san does, they treat them without getting angry.
③ As much as possible, only imagine your anger. Then, think about what kind things can be done and act.
(Example) Imagine a subordinate walking around a lot, be careful to walk fast, and carry heavy luggage.
Actually, I arranged what mentalist DaiGo said for the first ① and ② in my own way. I started ③ in order to reflect on myself, which had a short temper and had hit eight on someone close to me.
Since I started putting this into practice, I feel that a lot of things have changed within me. I've come to feel like the thorns have come off, but there are times when I can't do anything about it when it's clean, and there are times when I can't suppress my feelings towards people I don't like. What do you think I should do? Even if I try to be close to people I don't like, they don't seem to be able to understand each other because they don't open their hearts. it's difficult.
　

Yes, I understand. I'm also still being swayed by my own feelings (^^;;
However, now that I'm in my 30s, I've learned that even if I express what I think emotionally, it will cause misunderstandings and I'll regret it myself. I'm conscious of always taking a breath. Of course, it's not good to be patient, but being calm is important for yourself too ◎

I try to interact not only with work relationships, but also with people from other fields (through hobbies and community exchange). Interacting with people who have had various experiences makes one's thoughts and decisions more flexible.
Personalities don't change easily, but I think it's also important to accept the ideas of various people.

Momo-sama

This is Kawaguchi Hidetoshi. This is my humble answer to the question.

It is said that “I want to control the ups and downs of my emotions,” but as Mr. Otetsu also said, it is important to be able to notice the ups and downs of one's own emotions first. This is because in most cases, there are many cases where you don't know if you are emotional, etc., and as a result, there are major failures and setbacks, and you finally notice, reflect, and regret it.

I think Momo-sama is probably able to objectively view herself to some extent. Also, I think it is possible to listen honestly to the opinions of others, regardless of whether you accept them or not. This is also very important.

Also, I think it would be interesting to try out the emotional control ability diagnosis as shown below even in your spare time.

Is it easy for “emotions” to come out? Hard to get out? “Ability to control feelings” diagnosis
http://woman.mynavi.jp/shindan/control/
Hitting eight is half public emotion control ability diagnosis
http://lifestyle.jp.msn.com/life/shindan/start.aspx?documentid=252563978

Now, I think it can be said that one of the causes of not being able to control emotions is that “entrainment” is strong.

“Obsession” is, for example, a case where you cannot tune in well with those around you because you are particular about it, it is natural to be like this, etc. To add a little more, it may be said that emotional people tend to have extreme ways of thinking. Therefore, when there is something you cannot forgive, cannot be overlooked, or something you cannot compromise on, it is possible that you will immediately show emotion and extremely deny everything.

Buddhism explains walking the “middle path” as a way to deal with obsession, obsession, and frustration. Simply put, this is about “balance.” More difficult, there are “no immortal middle” and “eight immortal middle road” (immortal immortal, impermanent, undifferentiated, irrevocable), but please put this understanding aside.

Anyway, I think we can control our emotions a little by eliminating extremes and trying to do everything “in moderation.” There's still a long way to go, but...

Kawaguchi Hidetoshi Gassho