I want my parents to understand that I'm leaving college.

Sue Pooh
Nice to meet you, I read your sentence. If you can't speak, why don't you try writing a letter etc?

If the reason is that you can't speak or that you're afraid of school, how does Mr. Su-poo himself feel and how painful is it for not being able to speak? What kind of thoughts make school difficult?

Why don't you spell out your feelings in as much detail as possible and hit it on to your parents? If Sue Pooh's thoughts are conveyed, I'm sure there will be some kind of reaction from her parents.

In order to persuade parents, it is necessary to have some materials.
Isn't this the same for writing a graduation thesis or interviewing for a job exam?

Also, I would like you to have the kindness and leeway to fully care for your partner (parent's) feelings.

If you show a vision (life design where it's okay to quit college) that parents feel safe, it will be easier for them to be convinced.
Of course, there is also a feeling that it's a waste since you've been paying tuition fees until now, so it would be best if you could give them more peace of mind than that.

In any case, regardless of whether you quit college or not, you need to change yourself in order to live an independent life from now on.
However, every human being has the affliction of laziness and the affliction of pride.
I don't like to make an effort because I'm lazy, and I have pride that I want to think “who I am now is wonderful” even though there is no basis, so it's upsetting when others tell me to “change.”
Laziness and pride are worries that hinder change (growth).
But even so, humans are bound to grow.
Surprisingly soon, you'll be even more wonderful.
So, have the enthusiasm to not give up on yourself, and reassure them by conveying that enthusiasm to your parents.

It may not be an answer, but I'm not convinced at all, so I wrote it.
They asked me how to persuade my parents on the premise that I would quit college, but I'm not convinced. I'm not good at getting involved with people, I don't have friends, college is boring. I'll stop from there. Even if you stop, it doesn't mean you can clear your essential challenges, being able to have conversations with people, and making friends. You are free to date whoever you want to go out with at university. However, companies have no choice but to get involved with people, whether they are employees or part-time workers. In that sense, the hurdle for the company is probably higher. Even if you quit college, you won't be able to clear your own assignments. So why do we have to stop it?
The reason for quitting is not reasonable. If you have a more clear goal, or if you have more value than anything else, there are probably ways to persuade them, but I don't think objectively, I only want to stop because I don't like it at the moment. Considering that you are putting a large amount of tuition fees and burdens on your parents, and that the problem will not be solved even if you stop now, I strongly recommend that you search for yourself by self-reform and improvement through job hunting, and getting to know the company in various ways, on the premise that you are attending school or graduate. I'm praying for your success. Jōkō-ji

I advanced to the 5th grade of medical school, but after studying in the same grade twice, I got caught by the rule that I was expelled, and I dropped out.

In my case, my mental and physical condition was so bad that it was impossible to continue.

But it's better not to drop out of college.

If you don't drop out or die, please graduate even if you do not overdo it or put up with it.

The world is extremely tough on college dropouts.

I want them to graduate no matter what.

Well, in my case, there are times when I was able to become a monk because I dropped out of school.

However, for “people who haven't dropped out yet,” I want them to graduate even if they gnaw at a stone.