Let me give a shorter additional answer. I've recently lost 62 pounds. And even though I've got a long way to go to reach my goal, I feel a lot better about my physical self than I have in a long time.

You said something like dressing well makes you feel good. Well since losing this weight I have invested in my wardrobe. Probably a different style from you, but that's not the point. The point is that three months ago I wore crappy t shirts, worn out baggy fat jeans, and crappy shorts. Today I have fitted pants and button down shirts and sport coats. And that all makes me feel better to get up everyday and put that on rather than the previous fat guy uniform. The new clothes give me a lot more confidence. Even though I'm still over weight, I know I look better and I get a lot of complements on how I dress. People definitely treat me differently but in a good way. If someone assumes I'm gay because I've bought some fitted pants and trendy shirts, I don't care one bit. Makes no difference because it's about me, not them.

So you dress the way that makes you feel good and gives you confidence. That's part of taking care of you. I'm glad your mom is supportive for you.