Healthy self acceptance is half the ammunition you need when it comes to protecting yourself from bullies. If you don't accept yourself, not only are you a welcome target for bullies, but in a way, you're even bullying yourself. There are more than enough people out there willing to try to make you into someone you aren't without you actually trying to help them do it.
Self acceptance doesn't mean always being right or that you are prefect. We all have flaws and it's important that we accept those flaws as part of who we are. Of course, self improvement is a great goal to have, but you still need to be okay with who you are before you try to improve that person. Otherwise, you're really just trying to wipe that person out.
The differences between you and other people might scare you. Those differences might even make you feel like you stand out like a beacon in the night. The good news is that you're right, but not in the way you think. Those differences are the things that make you stand out, but instead of being something bad, they are likely the very things that will push you towards success if you let them.
Embrace who you are. Faults and all. As long as you aren't hurting yourself or anyone else by your actions, you're on the right track.