Can I start feeling like I am racist?
That depends. Could you explain the reason behind that feeling?
I am starting to hate all kinds of people and races.
Get some help. There must be a reason why you are feeling that way. People just don't get up and tell themselves they are racist.
You know what, forget it, I don't think racism exists.
But it does exist and you should find out if you are being a racist. It is not a good thing to be and you should want to stop if you are.