I've been groomed for 2 years, what do I do?

I met someone on a game called VRCHAT about 2 years ago. We first became friends as we bonded over pokemon etc and also loving the game we met on and making avatars together. I had just turned 15 a few months prior when it first started and he told me he was in his early 20's, it was just casual friendship I thought and all my other friends at the time were busy with life so I began to lean into hanging out with him a lot. Then slowly he started to buy me food, stuff for my pc, etc and I was estatic and happy he would even do it for more. But then he started flirting with me and wanted explicit image from me ,making me feel bad since he bought me stuff etc , so i caved and started sending them and we continued to be friends. He the pursued me in a romantic way and I fell for it as I thought i loved him and he was the first guy who had ever shown interest in me so we started dating. Later on it came to light he was no in his early 20's like he said and he told me he was in his 30's but since we had been dating for 2 months and i had no one else i kept going with it because I thought he loved me and would take care of me when my friends weren't there. We dated for awhile and during that time he was verbally and mentally abusive to me but i didn't because i still held on hope and thought I loved him. Early this year (I am now 17) we broke up and he has been threatening to kill me and more sometimes through call but i didn't wanna let him go because i had that unhealthy attachment to him until he finally blocked me. I have realized how much of a sick monster he is, even having another victim from years ago and I don't know what to do now. I am scared to contact police as I don't want to be possibly charged for sending explict images as it almost happened to my friend as she was in a similar situation and I don't know what will happen but then I don't know if he still has images of me and that makes me even more scared. My parents know but don't care as much and want me to do this all on my own as I am 18 in a few months but I don't know where to properly start and have that fear of getting in trouble because I got groomed and just feel so stupid for letting this happen to me and that I should've known better but I thought he truly loved me. I live in Oklahoma and He lives in Texas so I don't know how rules and everything will apply. please help.