How can you identify when someone is playing mind games with you?

I got tricked , by now obvious experts in mind games, in university into thinking that everything was my fault. Its been 6000 -20,000 years in greif trying to “fix the situation ” and I can’t let it go easily. How do I get rid of my last knot in my personality? Im angry now so I guess that I am ready to go to the next stage of grief. By bye denial. For those who don’t know my story I failed out of university and dumped by my friends and I went crazy and got put on disability in 2000–2003.