Can someone give me tips on what to do when mean people are making fun of you just because you are different from everyone else?

My advice would be to ignore the people who are doing that. Or you could try to get them to stop but if they don't I would tell an adult.

Heres what you do when people make fun of just because you are different smile and say oh thanks for saying that bc honestly the things that they say will not have an effect with u on 20 years later so just ignore them they are jealous because they know there not going to succeed  in life.
Like me i have bulimia but it doesn't matter to what other people think it just matters to what you think 

Look at the passages where the author describes the isolation and insanity that dr frankenstein has