It took me until my 50s to stop being self-conscious about my slender body and skinny arms. Exercising more helped a bit but it was mostly in my head. My advice - love yourself now! (The sign was for a Twitter pro-nudity campaign)
M 38 5'10" 205 - I've been struggling with body image lately. Just keep finding little things I want to chip away at. Depression & anxiety can be a bitch, no?