How do you handle your PTSD? Any suggestions when you feel you're out of hand and can't stop?

Have you ever blacked out over a trauma that gets triggered over the slightest thing even remotely relevant to it that it upsets you(verbally) and just didn't wanna stop but keep going and lose sight of all else until you're convinced you're right..? I had one of those black out moments.. haven't had it in years and after said and done I feel like such a hypocrite since I usually do speak about the things I dislike and this being one of them... Without question I genuinely feel like such a terrible person with the only thing on my mind being "what can I do to make it better" and "that persons now probably thinking of me completely different and won't speak to me again". When you feel yourself in a rage left by a troubled past with harbored emotions what do you do? Do you also feel helpless at times? Do you feel no one should get near you or have had such a troubled past that communication can get you nowhere and you're a difficult person to speak with? Do you feel it when you're exhausted from a day of work or tired in general? It's my most terrible flaw.. I'd like to know your experiences on black out moments and how you've dealt with them in the past.. No judging, just honestly curious cuz I always fear of doing it to a loved one even if it's just words.. The tongue can be the most deadly weapon at times..