What happened to you in another forum is sad but you can't undo, fix it, or cure it by discussing what happened there in this forum.
Sounds like you are are dragging the bad feelings along with you into this forum.
There is a behavioral therapy technique that can help with that. Whenever you start dwelling on it mentally say to yourself the words....."stop, enough". It is a great way to quickly short circuit the mental path you actually are sick and tired of walking down. That means you also need to stop writing about it. In a few weeks you will have mentally moved on if you take the time to actually retrain yourself not to drop into that rut of going over and over what happened. It sounds to me like the other persons you mentioned have managed to already do this for themselves. Now you should too.