How do you deal with maternal/paternal issues? (details inside)

No parent is perfect. We’re all human at the end of the day. I know few people who have transitioned into adulthood unscathed by their parents. I’m wondering if anyone here could tell me about their experiences of dealing and working through their childhood trauma’s. I appreciate that this is personal so any feedback is appreciated.
I’m going through some things at the moment and I’m finding it hard to accept that things were the way the were, knowing I cannot change that now, but still managing to maintain some level of relationship, without harboring resentments.
I understand that forgiveness and acceptance are key to this and of course I aim for that, but I’m looking for advice to get me through that period.