Lately I've been feeling that I'm irrational, crazy and probably overreacting to everything.
Why would you say that about yourself?
I just been feeling I'm annoying when I act out the way I do. I can't stand myself.
You really shouldn't be so harsh on yourself. It's good you realize the flaws in your personality. Therapy can help with this to figure out what is causing these outbursts.
I think I might actually check that out.
It's definitely the best first step you can make. I'm sure you feel very relieved once you start talking to someone.