I've seen your selfie before I banned you for it so my honest advise is do some sports and get more into clothing.
It's so easy to look better just by being healthy and having fitting clothes and haircut.
It takes some effort but it is worth it because people are superficial and they WILL judge by first impression.
Advice two, way more important, stop thinking negatively about you, grow self esteem. How? Find your own way. But by following advice 1, you are half way done.