I've found as long as I just focus on what personally makes me happy nothing else matters outside of that. People will say things and spread negatives no matter what you do, it doesn't have to impact you though if you don't let it get to you.

If you also surround yourself with as many positive and like minded individuals around you, it will most likely make for a much easier time to stay positive and enjoy yourself.

So don't let the negatives get to you, there simply isn't enough hours in the day to justify spending them feeling down about something that someone says.