"It's hard to snap out of it quickly. How do you do it?"

Can't say that i do snap out of it all the time,i can pretend though,i got my fake smile.I've snapped at family members,have made some cry,and feel bad about one second after i've done it.I've done this to people who are actually trying to be nice.These mood swings have sabotaged alot of relationships and events in my life.
Yeah,there is also a self destructive mechanism to these thoughts.I find myself telling the T,"i would never,ever harm someone else..." But i have to admit my thoughts contradict what i say.