Couldn't see the video because of unstable internet connection but I managed to wiki lamotrigine, as it sounded familiar. Personally, I never took this medication and my own sudden anger issues disappeared when the cause was removed.
But reading about this medication made remember a friend I had who had anger issues, and who took it (among others) for his bipolar disorder.
@bablyonee You mention several therapies, have you ever learned what causes your anger issues? Is there an underlying medical cause, or might it simply be a learned behavior (subconsciously copying mom, something I did when I was younger until I realized what I was doing)