Even if I have a lot of experience, I am still stupid and slow to react. I am clumsy in doing things. I feel that I am tired of making clothes and cannot learn.

Smart people will realize that they are stupid. Unlike some people who are trying to be clever, it doesn’t matter much if they have little experience. Especially when it comes to making clothes like you said, it shouldn’t be difficult if you join a tailoring class. Yes, I have also taken a tailoring class. You have to learn systematically and still like it, and you have to be brave enough to use scissors. You can keep practicing with large papers such as scrap newspapers. Retired clothes can also be used to make children's clothes. Clothes, etc., you will gradually get used to it and it will give you a sense of accomplishment. Might as well give it a try.