Part of the function of your frontal lobes is to moderate impulses, and they actually continue growing and maturing for several years past age 18. It sounds like you just had a little more growing up to do.
This is somewhat true, but I actually use to be very verbally abusive until three years ago. Then again I was dealing with not even having a therapist to talk about my gender dysphoria (not being out sucks for me). So who knows wth is going on with me.
