Too often I've seen people change in order to fit in or to gain acceptance from "friends". It's not really any of my business, but it's still something that I find irritating.
The fact that you feel like you have to change in order to gain approval from your friends, suggests that your friends may not really accept you as who you are and your friendships need to be re-evaluated.
If you're going to change, make sure you're changing for your own personal benefit and for all the right reasons. Don't change yourself for other people, change because you want to change. Change because you want to improve as person and to make yourself happy. Worrying about how others perceive you should be the least of your concerns as you go about living life. The most important thing is the way in which you perceive and love yourself.
At the end of the day, we were all born as originals so there's no need to die as a copy. We're all original, we need to be able to maintain our individuality. Be the leader, not the follower. Always the head and not the tail.