Why am I not recovering despite doing everything?💔

I’m a 17-year-old high school student. I used to be excellent in studies from a very young age, but when I was 13, OCD hit me hard and completely turned my life upside down. My first theme was religious OCD, and I struggled with it for around 2.5 years. Eventually, it started to fade, but then a new theme developed—something very strange and hard to even explain. Over time, I worked on reducing my compulsions. I used to have many, but now they’re about 90% gone. However, the main problem is still the obsessions. I feel completely stuck. I can’t focus on anything because thoughts keep popping into my mind constantly. These thoughts don’t even have any real meaning. Earlier, I used to think this was something external (like Satan), but now I understand it’s OCD. Still, it feels like my brain is working against me. For example, if I decide to memorize a page, my mind immediately resists, like it’s saying, “No, I won’t let you do this.” Whenever I try to study or recall something, my brain keeps throwing random thoughts at me over and over again, making it impossible to concentrate. I don’t argue with the thoughts anymore. I don’t try to fight or prove them wrong. I just say “fine” and continue with what I’m doing. I follow the proper approach, but the thoughts still don’t stop. Because of this, I’m unable to focus properly. I forget things easily, I can’t fully enjoy anything, and I never feel completely engaged. My mind is always noisy in the background. I’ve been doing everything I’m supposed to. I’m seeing a good doctor who has tried many treatments, but nothing has worked so far. It’s extremely exhausting. My studies have suffered a lot. During exams, these thoughts come in and interfere, making me forget what I’ve learned. Everything I study feels mixed up in my head. I honestly don’t know what to do anymore. OCD has seriously damaged my academic performance.