hentai caused me ocd?

Ever since I was young teenager I always enjoyed watching anime. I made friends from it and it has given me some good memories and motivation throughout my life. As a young teenager masturbation was apart of my life and I would almost always use porn as fap material like most others do. Around the age of 19 - 20 is when things got really bad. I began deep diving into hentai since normal porn wasn't as exciting anymore. This ended up being the worst decision of my life. Throughout my masturbation "career" I was always very thorough with what I was watching or viewing and didn't want to view something that was morally wrong. This was the same mindset I had when I started to use hentai as fap material. During the early stages of this "phase" I didn't think too much of it. There was always the occasional post-nut depression that would arise but eventually that would fade. Until recently... Of course when it comes to searching for fap material there is always the chance of stumbling upon something truly grotesque. In anime/hentai there are things called lolis and shotas. In simpler terms very young looking people. Throughout my hentai phase with was always a danger I would look out for. I would always check tags of the material, before viewing it, to make sure it didn't contain anything of the sort. But, that doesn't mean I didn't encounter it. Usually, once I get bored of something I'm watching or viewing mid-fap I would close it and searching for different material. While searching I would always encounter thumbnails of these lolis and shotas mid-fap and sometimes certain hentai I was viewing wouldn't even put those tags into their description and I would get flashbang by it mid-fap while looking through material. At first I didn't think anything of it and whenever I would encounter this I would exit what I was viewing and outright avoid any grotesque thumbnails I would see. At the age of 21, I had a realization. What if I am a pedophile? I've been encountering this type of stuff for a couple years now and still continued what I was doing. Even though I would avoid this type of content and would remove it whenever I encountered it mid-fap it still haunts me. I know that when masturbation occurs high levels of dopamine are released throughout the body and that porn in itself is an addiction but those these thoughts have been haunting me. "I was fapping when that content was on my screen", "Am I into this?", "Does this make me a pedo?", "Am I a monster?", "Did I ###$ my whole life up?", "Should I just die?" Since these thought entered my mind I completely and outright stopped viewing hentai and anime as a whole. I have been in constant disarray in my life and scared to death that I am a monster in denial. Now I just want to make something clear. I DO NOT SUPPORT CP OR PEDOPHILIA IN ANY WAY! Never had and never will. In fact, I'm not even really of fan of kids to begin with. I find them annoying and gross. But ever since this problem arose this conviction grew stronger and would remind me of my "hentai phase". There is no way in hell I would ever go near a child with intentions such as that. But even with those thoughts in my head, the denial and the dark thoughts I had before are also in my head. One day I'll be fine and think nothing of that time in my life and the next I would be in a deep depression ready for life to end. I've looked on numerous websites of other people who are in similar situations and all there posts are filled with comments of how they could possibly dealing with OCD and that the situation they are in is being completely blown out of proportions. But even after reading those stories I just can't let this go. I don't know if these are intrusive thoughts, ruminations, pOCD, bipolar disorder, ANYTHING. I am scared to death and don't know what to do anymore. If someone could please give me some insight it would be much appreciated.

Hey! Don't know if you will see this, but I hope you are doing okay! OCD sucks, but you are not alone. I hope the best for you friend!

I can promise you this is OCD. You are not a pedophile. In fact, you might be the furthest thing from it based on what you've said.
OCD is a very insidious thing. It preys on your worst fears and finds any grain of doubt, no matter how outrageous, and nags at you with it until you can't tell what's real anymore, except in moments of clarity. Please trust yourself, and if you can't do that, then trust me: this is OCD and nothing else.
There is TRULY nothing to worry about here. If anything, it sounds like you've shown more ethical care in selecting porn than 90% of people out there. But I think this reassurance should come with a warning - that you will likely feel relieved after reading it, but in time the doubts will creep in. It's those moments of OCD doubt that you have to push through, and have to tell yourself beforehand that you're not going to reassure yourself through them, or react to them. That's how OCD loses it's power, by not reacting to it or reassuring yourself about your anxieties. Ignoring a whirlpool of anxiety inside yourself is very difficult, but it's how I've had success in greatly diminishing my OCD personally. It will also set you up for success the next time your brain has an anxiety induced thought of 'what if __ is true about me because of __'.
In the midst of anxiety it's near impossible to dismiss your fears, no matter how absurdly untrue. It's only when you're out of the feeling that you can think clearly about anything.
All the best and sorry this has happened to you.