I would recommend as a rule of thumb to stay away from everything that isn't 100% cotton or made of anything plastic. Never wear sweatpants in public or shoes that are childish and make it seem like you don't consider your appearance. It is all about obsessing over your appearance (that's why women are so into make up and making themselves pretty as they are self obsessed). I would suggest looking into different styles and what sort of look fits you and getting a haircut according to your face shape. Styling is very person to person as it depends on how you look as well as the shape of your body. A big thing is to hide things that are undesirable and emphasize your better features. I would suggest loose fitting pants and flatter shoes as well as t shirts as your arms look decent and would be able to hide your strange torso. Your gyno doesn't look too noticable but if you think so I would suggest dark shirts and shits with graphic designs around the chest area, but make sure only shirts that aren't childish like video game shirts sadly. A lot of it is based on how you look so you just have to do the best with what you got. Good luck man, hopfully you get something out of this terrible word salad.