OP, I agree with others here that it's about acceptance (for yourself), not forgiveness (for the person who wronged you).
When I was in my teens, I was beaten up and injured in a sexual assault. The attacker was making a serious attempt to kill me till he panicked and ran away. For years afterwards I felt both (a) triumphant at having survived, and (b) ashamed of having 'foolishly blundered into danger', and guilty for not daring to report him to police. The one thing I didn't think about was the attacker, who had been an acquaintance.
I didn't need to forgive him or hate him; he had no space in my head.
My injuries seemed to heal quickly. I never told anyone about the attack, or my feelings of triumph and shame. Everything seemed to be ok.
I felt the same way about all the other sexual assaults and harassment I experienced, from the age of about eight. Bad at the time, but I survived and didn't give the attackers any head space.
Years after the violent assault, I started suffering from what turned out to be long-term effects of my injuries. Suddenly I was in pain, my ability to move was restricted and I started having panic attacks. I felt as if my active, independent life had been based on a lie and in reality I was terribly weak and vulnerable. I felt as if the attacker was laughing at me, from a position of power. This brought up the other bad memories of sexual abuse. Coupled with a lot of other changes happening in my life, this plunged me into depression.
I revisited my earlier feelings and (to cut a long story short) eventually understood that, though trusting people isn't always wise, it is nothing to be ashamed of. And though I should have reported the assault and all harassment to police, I would have had very little chance of being believed and would have suffered more. (That's not fair, but it was true.)
Physiotherapy, exercise and other treatments improved my physical condition, and I did a lot of meditation and other inner work to evict the attackers from my head again.
With hindsight, I realise I had developed a shield of protective behaviours: never let a man block my exit, be aware of who's behind me, don't trust friendly strangers etc.
For years after that, I was fine until recently when transgenderism suddenly came to power. Misogynistic men started asserting their godlike power by strolling into women's toilets and changing rooms.
I was filled with helpless rage stemming from fear. All the attackers, from the one when I was eight years old onwards, and all the voyeurs and flashers and creepy stalkers crowded into my head, laughing about how easy it was to hurt women and children. I cut down the amount I went out rather than have to use a public toilet. I became hypervigilant in changing rooms, finding a corner space from which I could check who was coming in.
But I'll be damned if I'm going to let them squat in my head again.
Now I'm in the next stage. I write to MPs and councillors, I sign petitions, I support fundraisers for feminist causes, I join women's groups and take part in whatever actions I can do. It's all part of evicting the woman-haters from my head. All my efforts are directed towards supporting women, not (despite what the transgenderists claim) harming males who want to use women's spaces.
Thanks to the ever-growing number of women and allies (thanks to Mumsnet too!) I can feel as if our efforts are starting to reclaim women's rights. This is once again helping me feel strong and whole, accepting myself and life as it is.
TL:DR - Accept and forgive yourself. Don't give the person who hurt you any headspace. Take action to protect yourself.