Fellow OCD sufferers. I spent last half an hour writing this topic and wasn't able to publish it, so now I have to start all over again in hope it will help someone. I am 23 year old man who suffers from PureO and HOCD. I suffered my whole life, but things got really bad around 6 months ago. In this post, Ill explain my fight in hope it helps someone because I see a lot of HOCD topics begging for help.
So, brief history. I am 23 years old, had HOCD( PureO) for 10 years. I know, it's a lot of time but I didn't realize what was wrong with me until recently. My first signs of Pure O and HOCD started at 13 years old. I still remember that feeling of fear when seeing a handsome man and thought popping in my head. Am I gay? Gradually, things got worse. Hocd ruined my life, I never had a girlfriend, never slept with a girl and I thought things couldn't get any worse. Boy, was I wrong. Since I suffered from HOCD my whole life, I developed a case of constant anxiety. I never knew what it was, I just thought I was supposed to feel that way. My hair started falling out, I couldn't eat and I started drinking and smoking. Drinking made me relaxed so naturally I started to enjoy some success with girls while being drunk because fear and HOCD would fade away. Then I hit it on with some girl and we were supposed to sleep together but all of the sudden anxiety, fear and everything came tumbling back. I couldn't perform. That sent me in the worst spiral of HOCD in my life. I knew I had to do something, but the problem was, I was leaving for another country for 5 months.
So, here I am, 3000 km and 5 months away from home, with the worst case of HOCD in my life. I spent 2 more months drinking and smoking, hoping it would go away by miracle. But it got even worse. So, I knew I had to do something, otherwise I would go crazy and do stupid things to myself. So, what did I do. I started googleing for similar stories and all of them said the same. YOU HAVE TO CHANGE YOUR LIFE. And you do. So, here is a list of things I did, and still doing, cause I am around 40 % in my therapy.
First, STOP WATCHING PORN. Also, stop masturbating if you can. This is one of the most important things you have to do. * mod edit - link removed* Basically, evolution did not prepare you for this much amount of porn. You will never relate to real women if you watch porn on daily basis. Porn substitutes your desire for real women and your brain gets extra sensitive and thats where things start going crazy.
Second, stop drinking and smoking. Since I only felt relaxed when I was drinking, naturally I drank more and more. I knew I had to stop that too. If you are drinking, stop it. You can have one drink or two but I suggest you not to drink any alcoholic beverage for at least one month till your body gets in natural state of sensitivity.
Third, if you are religious, start praying, if not, as me, start meditating. You can find a lot of books about meditation on the internet so do yourself a favor and cop one for the beginners. Meditation relaxes your overhyped mind and now I can go for one hour without a problem without these disgusting thoughts popping into my head.
Fourth, stop checking. This, I still have to master but I am on a good trajectory. Simply, stop checking do you find this and that man attractive, and stop checking will you get aroused around girls. Your mind needs a break.
Fifth, and extremely important. Agree with everything your HOCD mind tells you. And when I say everything, I mean everything. I know it sounds crazy and stupid, but you have to understand how the PureO works. The more you fight it, the worse it will get. So, nowadays when I get thoughts( and I still get them, because I am at 40 % of recovery or less) I just let them pass or say to myself, Yeah I am gay and I want to sleep with guys. Sounds crazy? It's not. You have to understand how sexuality works, you cant change it like that. So, when I see a good looking woman my body and my mind go nuts and I start feeling libido again. It's an amazing feeling, I have to tell you.
Six, surround yourself with guys. This is basically Exposure Response Therapy. Surround yourself with guys and stop doing everything you were doing to make it easire. I still feel anxiety around guys, but its much tolerable.
Seven, start writing a diary. This is a great way to measure a progress. You will thank yourself, once you get better and you start reading earlier entries.
Eight, and last, start exercising. When you exercise, your body produces antistress hormones and you feel better. Go for a run or something, if you dont want to go to a gym like me.
So where am I now. Well, I feel a lot better, I know I have still lot to do but I feel very optimistic. Also, I realize, that this condition will probably be with me my whole life and that it my in fact reflect reality. But, once you get pass that, it gets easier. Now, excuse, I am going to make lunch with my flatmates who are shirtless

I wish you very best with your treatment, but you have to understand that you have to change your life, it will not go away by itself. If you have any questions, post in this topic and I'll try to answer them.