Is your character a Mary-Sue? It's not necessarily bad!
Is your character a Mary-Sue? If it is then it's not a bad thing! Many shows and anime have Mary-Sue's as main characters, and if they do it correctly then it can be really well done!
That being said, you have to make sure your handling your characters correctly, or else your world will seem wierd, and not in the good way But of course, you can just make characters for the fun of it!