I honestly do not believe that the usual well-groomed - it's something prohibitively complex.

Manicure, albeit uncoated, but neat. Clothing, even if second-hand, but relevant. Minimal physical activity for muscle tone, even home workouts. Massage, even with a dry brush. Well-groomed hair, even if not dyed with balayage. All this can raise self-esteem and give self-confidence, and then you see, photo shoots and boyfriends will begin :). And if the problem sits much deeper than it seems, then it is more logical to contact a psychologist. Feeling beautiful and desirable is important for every person, in my opinion. Therefore, love yourself and take care of your body.