F45, 142lbs, 5'4" I don't normally take the full frontal photo like this because I have always been self conscious of my mid section but I have learned over the past couple of years to accept, love and own my body.
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)