This one is about forgiveness

It came up in one of the classes I have to take in order to stay in this program (might get kicked out soon anyways.)

It was about forgiveness and spiritual growth. And I brought up the question about the negative aspect of forgiveness because to me in order to forgive something you have to accept what happened and to me there are somethings you just can't accept and move on. To me that would be an injustice and a copout for the other people. But does that mean I won't be forgiven of my sins because I can't accept the sins of other people? Jesus forgives other people through his grace and love. And although I don't even like certain people it shouldn't be on me to accept them or the things that they have done.

And I don't care if Jesus does forgive them and they go to heaven when they die. Heaven is a very big place it's not like I'll actually have to see them or if I did I'd rather be in hell anyway. Now before this turns into an hour long page of me ranting about hating people. Does anyone have an opinion on forgiveness? And can you still hold on to resentments and live a pure life.