Some people avoid connecting with others, because social situations trigger anxiety and fear. This is based on shame and may be worsened by stigma. Cognitive Behavioural Therapy can identify and treat your specific fears.
"Get a better haircut" is basic advice for people wanting more dates. For some it's a platitude that doesn't help. For others, a haircut is easier said than done. Why invest in yourself if nobody is interested in you? In my 20s, I switched from cutting my own hair to going to a stylist, and at first it felt scary & invasive. Now I look forward to my salon visit, and good hair makes me feel attractive and proud to be myself.
My first therapist helped me feel less ashamed of eczema, and more able to make friends and relate to people.