I am 18 years old attending highschool (3rd year). Have been out socializing and drinking since i was about 14-15. I have a pretty large circle but the problem is that i have done some stupid immature shit to damage my reputation. This has slowed the expanding of my circle.

I do have some "enemies" but i am not hated, what i want though is that people of importance to me say good things about me behind my back.

I know reputation is very important to not fuck up, do you think it is fixable? How would you go about it?

To summarize, did stupid shit, was cool, stupid shit not cool anymore, reputation damaged.