Everyday we are constantly changing, growing and evolving. However, this wave of change is something natural, that you cannot consciously force upon yourself. Never change yourself to please other people, because humans were not made the same and we are not pleased by the same things. If you are met by someone who does not care about your ideals, they are simply not the ideal person for you.
Remember that as a human being, you reserve the right to be different, opinionated, and quirked. Remember that there are others out there; the strange, the unconventional, the kids that push the limit. Surround yourself with the people who make you a better person, who make you feel good, and those you feel comfortable around. Surround yourself with vision, with free spirit, with fresh air.
Surround yourself in the present, live in the moment, and always remember your stance.