I feel guilty. They don't stop.
Think of it this way: Or you could have done everything in your power and the courts would let these people go.
Instead, you did something incredibly useful for one of their victims: Yourself, seeking healing.
There's nothing as objective guilt about it, you haven't done wrong by taking the route you took.
You were responsible and honoring yourself, and you're still responsible in watching out for others.
That prosecution of offenders anywhere is difficult, doesn't make you a shit person.
You've done enough by living through, you're doing enough by having considered how to be just for long enough, and you're doing enough by still caring.
You really don't need to do more, it's up to others, too.