I was only really bullied in elementary school, so no. Sure, I literally have maybe 3 memories from ages 5-12 because the rest is a bunch of blurred pain. Sure, I needed therapy for episodic depression. But to hear someone tell me that they were sorry for stuff they did when they were 9 or something? I don't think that really means anything.
I think the real problem is that a lot of people who needed help didn't get any. They had no support system. I got help, because my parents knew that children don't know how to deal with that shit. A lot of people don't and they honestly suffer for the rest of their lives because of it. I don't think most people realize, even if you think you "got over it," that these kinds of experiences define a lot of who you are.
I'd like to tell people that there is nothing wrong with getting a therapist and just talking stuff out. I had my sister, so I was lucky. If you don't have someone who cares enough to sit down and help you through this, there is nothing wrong with paying people to help you. There are people out there whose jobs are to make people emotionally healthy. No pills, Just helping you to be comfortable with who you are.
On the other end, if you know someone who you suspect might be suffering, take a second out of your day to ask them one simple question, "Are you OK?" Just asking the question can make someone feel loads better, even if they just say "fine." and dodge the conversation. Make it a point to ask them how they are feeling on a regular basis. Eventually, they might open up and you can get them help. Please be a good human being. If everyone took a little time just to be nice to someone who is having a tough time, I guarantee you that the world would be a better place to live in.
Don't say, "people are jerks and nobody will do this...so what's the point?" This is not about anyone else, this is about you, personally, doing something good.
If you feel like you are ruled by your past, it's OK. If you've tried to "fix" yourself and failed, that's OK. Most people can't. We're social creatures; we need help. Don't be ashamed to get some.