Well, I spent a bunch of time reading about the adolescent brain. I discovered that our brains don't really got hard-wired until we're about thirty, and that the parts of our brains governing logic and sound judgment are the last to develop. I think I'd start there.
Good parenting has to be at the base of any correction here. As the saying goes, the apple usually doesn't fall far from the tree.
I never was the sort to really be picked on, nor to pick on others. My parents were a strong influence there. Being the sort that didn't hang with the pack (I've always been way ahead of popular culture) can sometimes be a lonely place, but, sometimes right is right, and wrong is wrong, and being different is o.k.
Now, if you pierce your nose, cover yourself in tats, and do goth,....you can't expect to gain the same level of acceptance as someone more traditional. Culture takes time to evolve. God knows, I caught a raft of shit over the years for my lifting, grooming, and so on, but, popular culture has finally caught up to me, and that's fine (metro is mostly in).
I also make it a point not to act an as enabler. If a part is weak, you don't coddle it. You work it into, through, and beyond to a newer level.
In my personal experience, if I like myself, and folks see that, they can't bug me, and that does a couple of things: attracts them to my confidence, and gets them to stop bugging me.
E.g. the manager at the gym where I train like to give me a hard time for my singlet with the shorts on top and my wrestling shoes. I dress for performance and to make the mind body connection, and I look the part. My response to Adam is, "Yep, and you have to have a certain look to pull it off too, Adam, and I do." That shuts him right up. Had he been able to shake me, he would have kept at it. Now, he makes it a point to bring his tours by me so they can ew and ah.
Religion, fashion, and so on, are all examples of weak-minded folks that conform, without compelling reason, or basis in facts. On the other hand goth, tats, and so on, are just the opposite, being more a rebellious statement, in my view, than anything else, and that's o.k. too. I've been on both sides.
Body modification bugs folks.
Just this morning, I got a hate email from some 21 year (bluecaddy17) about how my liver and tendons must be trashed and so on. He is, of course, indicative of that youthful ignorant arrogance, and the case of the brain not yet being wired. I pointed him to some facts about all that stuff, and put him on ignore. :-)