All of this is unsuitable, so I can't say anything about it. People who are too obese make an effort to lose weight, and people who are too thin make an effort to gain weight, right? So which is better, increase or decrease? It's not going to be a story like that, is it? It is determined according to each person's physical condition and constitution, and it's something you won't know until you try it. The differences in sectarian practices are born from such places.
It's an unkind answer, but I dared to write it this way because I really want you to try various things. I say that because I wonder if I'll meet a good leader after all.
Well, Zen and meditation... there are definitely a lot of them. There are more than there are many denominations (laughs) There are many denominations that can be done at home or outside (maybe not because the Jodo Shinshu is characterized by denying ascetic practices in the first place). Once you understand, you can push the stroller and go round and round the escalator, or you can do it while sitting on a chair at a shoe store (← don't imitate a good kid).
However, after all, you should go learn at first. There are many people who have strained their self-education, become strangely fanatical, and have become tengu and their personalities have become difficult. If you move in the direction of self-righteousness, it's counterproductive, and that's not a question of methodology; it's a question of whether or not relationships can be cherished.
First, why don't you try going nearby using zazen sessions or small ascetic practices as keywords? Praying at a temple and putting hands together... that itself also has a simple element of meditation.