hi , i no its hard im 14 , 5`3 and am 193 llbs , it really does my head in when all my m8s say your really skinny ! its so obvious there being sarcastic ! the one thing you shouldnt do is make your self sick , my friend actually did that but got bigger because she ended up loseing muscle and not fat . i have also been on loads of diets but none work , if u ever need to chat my e mail is >>> jon_dont@hotmail.com <<< hope i made you see sence !