Always attract the wrong types off boys !!!!?

i always seem to attract the wrong kind off boys, i look older for my age im ataully 13 and happern to attract 15+ boyss...but when ever they ask for my number they always seem to be dirty..asking for dirty texts, asking for ..it does my heading...its strange i always get boys saying 'i want to f**k you' and tbh some girls might take that as a compliment but i dont because im still only young and it seems ill never get a boyfriend they all seem to be after one thing with me..... why do i attract these kind off people.i dont dress like a tart i normally wear jeans lool :P