Off my chest: I really wish I knew how to defend myself?

28M here and last fight was in middle school. Adulthood altercations are something else. Self-explanatory with so many YouTube fights ending up very bad.

I want to take up self-defense as a life skill and because in the past few years, I’ve had plenty of growing up to do. Took care of my dad, before he passed away from colon cancer. Feel legit alone in this world still live with my mom though, and she’s a bag of nerves.

Was enrolled in karate school for one summer, but never liked it. I do, however, like boxing for cardio, and tae kwon do for my interest in learning Korean. I am in good enough shape, though due to my job and being able to do pull-ups solo.

I do remain frustrated, however. Angry at the world, and self-aware enough that I can make a regretful decision in less than a minute.