I think my girl friend is super insecure
Why do you think that she is super insecure?
She cries a lot and is always quick to blame me
Insecurities in a relationship is very common. Console her and tell her you love her everyday, which will increase her self esteem. You don't want to stay in a relationship with a lot of drama.
Fuck that, I'm going to make her cry more than she made me.
Neither one of you sound ready for a relationship. You should consider couples counseling.