Well for your weight problems, have you considered any serious diet changes like a lot of vegetables and fruit ofc. staying away from soda junk food and sweets forever? Because thats what I did to drop 25kg in 3 months. I know that I went through an extreme called anorexia nervosa and dont do it its simply ->-bleeped-<- I still have these thoughts in my head. But I guess with a very healthy diet you dont even need to do extremely much sport to drop some weight. I would simply tell you to skip some meals with salads and stay away from anything that is like considered "unhealthy". If you fry just take extra virgin olive oil and aswell try to eat fresh fruit instead of sweets when your body requires sugar. Every meal I eat also has some fresh cut cucumber, tomatoes, carrots (or what ever vegetable you like, even if the meal already has vegetables in it).Anyway being thin also has some disadvantage, to get my very desired full breast I will have to go through breast implants. And anyway against the sun damage, well I am a gamer nerdy girl sitting nearly no time in sun. And I always start hitting sun protection 50" at the start of march to maintain a very healthy non sun damaged skin (but thats just an obsession with being pale as a freaking vamp xD). Anyway you can always change and achieve some looks I just encourage you to hit your goal!