You can dance. At the age of 20, it's time to enroll in adult classes. Just prepare a pair of Latin dance shoes before class. You can wear ordinary yoga clothes or dance clothes to practice. You may look better in a practice skirt, but now it's cold and there are more people wearing pants.

The first class may not formally start to teach Latin dance, but it should be leg press, ligament pulling, split and some basic dance skills.

If the purpose is to lose weight, you must make up your mind, because Latin dancing is very tired and you may be sore all over at first. I hope you can stick to it. :)