I didn't have the same issues with video porn as a lot of guys here, but I think my experience may make it a lot easier for you to reboot.
This is all a great experiment because you are rewiring your brain to work along "normal" channels and nobody really knows exactly how to do this in every case or even in most cases.
We're all learning.
So with that, since I'm no expert, all I can do is share my experience and my recommendation.
I think the big mistake most guys make is to avoid sexual contact during reboot.
I stopped a lifelong habit of masturbation and fantasy and porn cold and I've had relatively easy time of it. I'll get to the reason in a moment, but let me give you some really quick background.
I used to have occasional problems getting erect and in fact my first GF who was understanding and helpful became my most wonderful wife and was the first woman I was able to have successful intercourse with.
I would masturbate frequently, once or twice a day, to erotic stories and fantasies. As life went along I would say there was some escalation in these fantasies and as my adult sex life in my marriage progressed, "ordinary" sex seemed less interesting and less rewarding.
When I stopped masturbation and porn and fantasy, as I said, I had an easy time of it. And I think the key was two things.
First, I engaged in daily bonding with my wife as never before. Morning and night, probably 60 minutes or more, and lots of hand holding in between. I just gave my wife a five minute massage while she was at her desk and it felt great to me and to her. This is how I live my life now. With very frequent non-sexual contact but lots of skin to skin and snuggling, massage, stroking, etc.
Most of this doesn't involve kissing or anything overtly erotic.
However, there is something remarkably satisfying with this contact that made it very easy to get over what would have seemed insurmountable before: giving up fantasy and porn and masturbation.
The second part of this process is non-orgasmic sex. Having sex is the object of rebooting, having a good healthy sexual life and good healthy sexual relationships.
If you are rebooting I would strongly suggest you do a lot of bonding and have a lot of non-orgasmic sex.
Some guys say, how can I have sex? I don't get an erection yet. But that is not necessary or important here. You can use soft entry and spend time even with the tip of your penis inside your woman. There is great benefit to this and you wake up a lot of feelings that are deep and amazing.
If you are lucky enough to have a girlfriend or spouse, this is the way to go, I think. Stop porn, stop masturbation, stop orgasms, but engage in daily bonding and lots of non-orgasmic slow sex whether you have an erection or not.
Guys are always measuring their success in rebooting or a sexual activity by the hardness of their erections but this is really a tragedy. Because even sex with a soft penis is sex and you can have incredible feelings without getting an erection. Anyone can get their penis inside a woman even if it isn't an erect penis, and I believe you will benefit greatly by dropping the belief that you must have a strong erection first.
I think this is possibly the key to easy and successful rebooting.
If you don't have a girlfriend or spouse it is much more difficult of course. I don't know what to tell you, except that even sex and snuggling and bonding with a friend would be most helpful. I wouldn't suggest sex with a prostitute or someone casual, but this type of contact would probably help you reboot even if it isn't your lifelong love.
That's all I have to say on this. Your comments and suggestions are most welcome. I would strongly recommend you try this out, though.