I'll ask you again. If you're a man, tell me exactly what is making you feel like your child that you created not unwillingly is a burdon upon you. If you honestly feel that way, you need to grow the fuck up and be a man or stay out of her life, because she would probably be better off without a child as her father.
You chose to have a baby, whether conciously or unconciously, willingly or unwillingly, and you should own up to your choice.