Have you ever tried to create a cartoon character and have it turn out to simliar to something already on the market? Well most things have been done so coming out with something totally original can be tough. The best way to make sure you aren’t copying another artist is to look inside yourself and create a character from yourself. I did this with the Pride Junkie, although he has some powers from other influences the character is true to my idea of who he should be. Think about how you are and create a character from that. You’ll find you come out with something original in the end.
Good luck!