Know what martial art is for you, do you want to do MMA striking or ground work?

Karate is mostly striking 70% fist 30% kicks while Tae Kw an Do is the opposite....Judo aikido ect are ground arts and throwing.

I like to strike so I practice karate....commit and do it 3-4 times a week with a quality school.....I prefer traditional arts.

There are a few different types of karate shotokan being the most popular and also what I practice.

Also fist strikes have more PSI as the only contact is 2 knuckles....palm strikes are good for hard targets where you may break a knuckle.

A proper fist solves most of this.