The smallest comments will set me off in a crying rage because I think of everything bad that has happened to me and it makes me feel weak
Why do you think those comments hurt you?
Because I feel weak and there is a lot of bad things in my life.
It is understandable that bad things in your past can make you feel bad but you have to deal with them. Otherwise you will keep falling apart and you will have a difficult time in the future.
I'm trying to improve myself. And I'm sorry for my emotional outburst.
There's no need to apologize!  It's natural to feel the way you do after what's happened, and it's healthy for you to be able to express it the way you did!