Can't stop crying or feeling upset?

I have a problem with not being able to control my emotions, it's a serious problem in recent years. When I was younger I would just hold things in and not talk about it because I felt I was supposed to. Now, the smallest things can make me upset, and then it will turn into this snowball effect, and I will become more upset and cry until the point I want to die - not kill myself, but I do not want to live anymore. I'm in therapy, and I have a psychologist but it seems to not work, I'm trying to give it more time, but I feel upset at the moment and I really want to know what is wrong with me now. I have called hotlines, but they do not work for me. Maybe someone can suggest some support groups online, being that I do not like to be around others?