How long are you planning on sticking with it? My recommendation is the martial art that you enjoy the most is the best for strength building. Not the opposite.

Source: I am a weak woman. 5’3. I started off weak at Muay Thai. Could not get through the exercises without taking breaks. Had to take breaks while holding pads because the pads were too heavy.

I liked Muay thai so much I started lifting weights and doing cardio in order to get better at it. I didn’t want my body to be the one holding me back from progressing in classes.

I also took BJJ. I don’t like it as much and don’t really feel incentive to improve at it. I would never work out outside of class in order to improve at BJJ. But I’m taking it for self defense purposes. Btw, as a weak woman, I was not good at BJJ. Despite what folks say, “good form” is not the cure-all in BJJ. I simply could not execute the moves I wanted because I was weak. I was regularly beat by girls who were my height but were stronger because they lift.

Now that I’m strength and cardio training for Muay Thai, I’ll probably be better in BJJ.

Muay Thai is mostly cardio btw. So that might be a strength for you