I think I am a disgusting human being.
Have you spoken to other people and tried to get yourself help?
I've spoken to my mother about this and she believes that I can do better if I just try.
You can't easily control the way you feel about yourself, but this could be a problem if the thoughts continue.  It is good that you tried to get support from your family, but since the feelings persist, it would be a better idea to help from a mental health professional.  A therapist will have a better chance of success in helping you to resolve the issues related to your self-image.
Ok I will look for a therapist immediately.
That sounds like a great idea, and I hope it works out for you.  Simply talking to someone who is trained to listen attentively will be the first step to recovery for you, and you will feel better soon.