Sometimes I feel like I'm a huge hypocrite.
Why do you consider yourself a hypocrite?
Because I don't do what I tell other people they should do.
Practicing what you preach will help you to be less of a hypocrite. At least you have admitted your fault.
I'm a terrible person and hope everyone realizes it and never wants to talk to me again.
That seems like an overreaction, we all have faults and once we learn from them we can start making improvements. Focus on bettering yourself so that you can be the sort of person that people want to associate with.