Should i do this movie role?

Well... As an actress, I can totally relate. I have had to play roles before that I was uncomfortable playing but, It is just acting. I think instead of judging the character your playing, you should try to put yourself in their shoes. Try to see what they see and get closer to your sharacter. That's what makes a good acter. I am not saying you should change the way you feel, but I think if acting means enough to you, than you should put those feelings aside. It would be a great experience, and I think it would make you grow as an actor... and maybe even as a person. Good luck in whatever you choose!