Got to love yourself first. Cant ask someone to do something you are not willing to do yourself. Easier said than done of course! But most of these thoughts are thoughts that everybody has, stutter or not especially at certain ages. Of course a stutter makes it harder, but people have all kinds of issues to deal with and no doubt think the same about whatever stuff they have. Focus on what you have got first (you said yourself you aint bad looking) and then look at the stuff that needs working on.