Hi ME! And Welcome to the forum,
Love your username! When I try to give advice, I'll always think of what I'd want to say to ME. :D Just a little humor... very little.
I had flashbacks that came at me like waves on the shoreline. As soon as I came to grips with one, it receded and was followed immediately by another one. One after another, and it wore me out, it strained my relationships, but that's all over now. I don't have any new flashbacks anymore. It's like I got to the end of it, and now I know. All the really painful ones, I kept trying to hold in like when you have the flu and you don't want to vomit. But, it only made it hurt worse... and it found a way out anyway. I found it easier to turn around and face it.
That didn't seem easier at first, because there was so much pain, shame, anger, fear, paranoia... etc that went along with those flashbacks. But, one day I had one that trumped them all, and I wished I had died, wished I'd never been born, wished I didn't have a reason to live through it. And, after that, every other memory that came... I was like, "Well, if I have to live with that one... then I can surely live with this one too." Bring it on.
Seems like, for me, once I understood it all and all the memories came back, and I forgave myself for most of my mistakes, I forgave a LOT of people for their mistakes, and I placed blame where it belongs... now I have flashbacks that I recognize and I've dealt with. I just put them back in their file drawer in my mind, or I hold them out and examine them further; but I'm not afraid of them anymore. It's over.
You can get there. You can do this. This is your life that you're remembering. These experiences are part of you, and even though I hate it sometimes, I know that it's important to know that I still make decisions based on those experiences. It's best to be aware of that, so you can re-evaluate the decisions you're making based on those experiences.
I hope that this helps. I can't make the flashbacks go away... but maybe provide a little hope and willingness to see them? You didn't choose those bad experiences, you didn't have power to stop them or prevent them, and you can't change them now... but the person you are now needs to be aware of that part of you that is still holding on to those memories. Purge them, look at them in the light, and get REALLY PISSED OFF. But, forgive yourself for everything, place the blame where it belongs and learn from any mistakes you find. It will give you peace... at least it's helped me.
Here's hoping I didn't overwhelm you, while trying to shine a light through the tunnel.