How to make it stop

I just want to stop thinking about her. I think about her all the time day in and day out, even though she hurt me beyond belief, and I was willing to forgive her because of how much I love her, but she doesn't want to be with me. She wants to be with someone she only knew for two months. Someone who is younger, better looking, and apparently has their shit together. We were together for seven years. I can't eat, I can't sleep, I can't even think about anything without her being on my mind all the time 24/7. I just wanna make it stop. How can I stop myself from loving her completely so that I can finally stop thinking about her. I tried to unalive myself 4 times just to make the thoughts alone stop. It’s getting to the point of being unbearable. I go to therapy once a week. I’m on several different medication’s. I bury myself in work and constantly cleaning the house. I have to put the TV on at night in order to distract my brain and even with the volume pretty high it doesn’t work. I can’t watch TV, listening to music or go anywhere or do anything without everything reminding me of them. With four unsuccessful attempts I just don’t know what to do anymore. My body is becoming physically, emotionally, and physically exhausted. I just want the thoughts to stop.