Masturbation on SSRIs

I have OCD. I've been on SSRIs since I was 14, now 24 (I think that's bad but can't really go off). I'm FTM trans and have been on testosterone for 3 years, 1 year on standard dose. I didn't have a sex drive, couldn't orgasm, didn't enjoy masturbation for about 10 years before going on a standard testosterone dose and suddenly I could.

BUT sometimes it takes me forever to orgasm. And sometimes it only takes me like 10 mins. I think I've turned into a porn addict because I can be trying for 2 hours, and I absolutely do NOT enjoy it (I don't have a gooning kink). It's just this weird compulsion where I have to get to completion and I hate it. I feel like it's wasting so much time. I can't explain why I don't just give up after 10 mins. I really find it uncomfortable and annoying. At that point I'm not horny at all.

I've suffered from videogame addiction and it feels like the same impulse. Like I'm so focused on completing a goal and I hate it.

I have been on Zoloft for 6 months, and on Lexapro before that. I think Zoloft has worsened this.