Heatmos, if you can't forgive...don't. :-)
Truly, forgiveness isn't the endall...it's really a natural unfolding of a compassion that begins with you for you. So start with that and don't worry about the rest. If you're willing with a sense of adventure to go on a journey and see where it takes you with no expectations or demands, then forgiveness will take care of itself.
Be with yourself, sit with yourself, your feelings, your emotions with no desire to do anything with them but to sit and be with them. Let your emotions speak to you, let yourself hear what you have to say, and do so with no judgment. This is compassion. This is deep listening. This is the beginning of healing.
Don't try not to hate...you can't do it. If you feel hate, then feel it...unconditionally and with acceptance as, "oh, hello, this part of me"...and see what happens. Feeling your hate with compassion is not the same as feeding it. Fighting hate feeds it, because hate is all about struggle. But meeting your own hate with compassion toward yourself as a person is greeting fire with water...fluid, fllowing water guided only by your intention.
Blessings,