I Am Very Insecure About My Body

I'm way to skinny. No matter what I do it seems I can't put on alot if weight and when I do I lose it fast. Also I'm not a body hair person and I'm covered in it. too bad there's not a special Nair bath yet. just sit in it and when you get up it all falls off. can someone make this. also my skinny Ness and slight bone misalignments lead to me never taking my shirt off In public. I just want to be a fairly hairless 180 pound dude. like come on.