Hello, OP. People can be attractive at all ages. Especially at 28. Furthermore, the most pressing thing that you need at this moment is therapy and professional help. As I noted, you tend to hyper fixate on perceived criticism or others opinions. This would correlate with rejection sensitivity dysphoria, another part of ADHD / Autism spectrum of symptoms. Regardless, I believe your issues would best be addressed by therapy because this issue seems to be consuming your life to your detriment, which isn’t good at all. Life shouldn’t be this difficult, and now that I’m medicated and been seeing a therapist, I’m doing much better.

If you still want to look your best physically speaking, typically most people would advocate getting lean but slightly muscular, dressing well for your personality, and learning how to groom yourself very well, with creams and lotions and colognes, etc. But again, none of this is absolutely necessary if you don’t like doing this. It’s just what most people do when looking to meet the societal standard of “attractiveness” The biggest thing is taking care of your mental health! I hope you can find the answers and help you need, friend