I want to change, can anyone help me?

I understand completely, but here is the thing, unless you move it takes A LOT to change your reputation, i don't know what yours is, but if you want to be nicer and have more friends, you can't ever be mean. and you cant change your interests, that's just who you are. Don't try to change to be like everybody else, people like people who are different and fun! What will really change your reputation will be your confidence. If you believe you are an interesting and different person, others will too!