Martial Arts

Try it out for a week, most schools will let you do that. If you like what you see, you like the other students, and you like the instructor, then try it for 3 months and reevaluate then. I recommend trying many different martial arts. Just don't let them give you a hard sell and sign you into a 1 year contract! Whatever you do, don't choose just one martial art and do only it for the rest of your life!

I don’t know too much about that practice but if you prefer actual training with full contact and covering ground fighting then go judo or ju-jitsu. Otherwise you’re not practicing reality of protecting yourself in a fight

What are you looking for in a martial art? If you actually want to learn how to defend yourself I wouldnt recommend it for example. It is however a beautiful art that demands skill and athleticism. I imagine that combining it with kickboxing for example would make you actually pretty dangerous. Maybe you just wanna do a fun sport that looks cool for which its probably great.

Why do you want to train martial arts? Without a goal it's hard to tell if TKD can be for you. Is it impressive? Athletic? Sure. For me personally I'm not a fan of the focus on kicks that is due to the WTF ruleset. Why? I like to also punch, grapple, throw, do weapon work etc. and even if self defense is totally not in my focus the high kicks, lack of a proper guard etc. are not for me.

I checked out a couple tkd dojangs. One seemed very focused on getting leg flexibility, another was very kid-focused, the third had a couple former Olympic athletes. They all practiced a mix of basics, forms, and sparring. It's generally not focused on getting you into an MMA match, but you'll definitely learn to kick and punch.