In fact, personally, what to learn is not the point. The important thing is to see what you need. You can learn both, just for fitness. If you still want to defend yourself, karate is more suitable among the two. As the saying goes, with your legs in the air and one foot up, your strengths and weaknesses are completely exposed, and your agility can quickly make up for your weaknesses, because you say that you are slightly fat, which leads to worse posture than some people. Karate doesn't mean fighting only with boxing. People who have seen real karate competitions should know that some players who knock down their opponents also rely on the amazing lethality of their legs. Don't say I prefer karate. I haven't practiced, but I have communicated with practitioners of both. Know a thing or two about it. Taekwondo used to be a very offensive and defensive sport, but now it pays more attention to performance. To find something that can be used in actual combat, I really can't find those famous teachers. You must find a master. The former is easier to find than the latter. Karate needs actual combat and is suitable for learning extreme karate, not to say that other schools are not good. In terms of competition restrictions, extreme karate seems to have few restrictions, almost all contact. For other events, Sanda and Muay Thai are also good choices, but both of them need high-intensity practice and are more suitable for men to practice. China Wushu is too controversial to discuss now. The final choice depends on your own interests and goals. The above is just a personal opinion, please don't take it amiss. I hope you can find what you like soon.