How to let go of guilt

I have got so much anger and guilt inside. I'm desperately searching for solutions on how to just "let it go".

Hello Avalonia708: I hate to be stating the obvious here. But the usual way these sorts of things are addressed is via therapy. One has to talk these kinds of things out at length over a period of time, presumably with a counselor or mental health therapist. One's family & friends cannot be the ones one does this with, in my opinion. This is not to say there are not other approaches. But therapy is the mainstream approach nowadays... the one most people pursue... or at least that is my impression... Perhaps other membeers, here on PC, will have some different ideas to share...

Hi Avalonia708. Yes many of us struggle with guilt. If only...I I hadn't...if I had...I should have...I shouldn't have. You know how hard it is to stop beating yourself up.
Skeezyks is right (again!) in that many people address this in therapy. Is that an option for you? Sometimes it takes a while to find the right therapist but it's worth it.
Other suggestions that I've tried or others have suggested to me:
Mindfulness meditation (you don't have to be any particular faith to practice this)
Emotional Freedom Technique (also known as tapping. I thought it was a little silly at first but the one I found on stilling the critical voice inside was actually helpful
Telling yourself what you'd say if a dear friend of yours confessed doing the same thing you are beating yourself up for and then saying those same kind and compassionate things to yourself. You deserve the same compassion and forgiveness
I invite others to add their comments and suggestions as well.
It surely isn't easy to let go of the guilt, but torturing yourself helps no one.
Sending thoughts of peace your way

As we know guilt is the price we pay when our behavior violates one of our learned ideas or beliefs. There's no reason to feel perpetually guilty for making a sincere mistake. To make mistake is to be human. Mistakes are part of life - everyone makes them.