On stopping, my sense is it turns on where you're coming from in getting into the game. Step 1 is to figure that out/self-reflect/discern. Then how you dismount depends on which type. A bit hokey but let's make it into 4 types.
(Obviously if you have a regular/ATF whom you just like as though she were a booty call or a cool enough fuck buddy whom you happen to pay, then with that chick you have crossed over from the game to some kind of paid situationship. So, if you ask me, you're out of the game if you're just down to that one.)
1. On a heartbroken rampage/fuck the world - if you're fucking these hoes so that you can just disrespect a hoes/hate fuck/cum on/in with contempt, you need to get to the bottom of that with therapy. If you have the means, you also should travel around the country or the world. Meeting women in other cultures who simply aren't saddled with whatever local bullshit pissed you off will help you heal and change perspective. Women in other places tend to be more like regular ass women. It's in these large fucking cities where they get the complexes that drive you into a rage or just wear you out.
2. Just looking for sex because you're in a sexless relationship - the way to quit coming fron this standpoint is to figure out if you just need a release or if you need intimacy or to feel like a human. If you need a release, you generally should be able to manage by jerking off and then ratcheting down the frequency to where you will go insane if you don't get inside a hole. This is a long term path to quitting. If it is intimacy/the feeling like a human thing, see the next point.
3. Looking for sex as same way to feel human and get a break from life's bullshit - coming from this standpoint, I think the way actually is to lean into your desire. Set standards for yourself that make sure you are getting what you really want from these chicks. So, hold out unless the circumstances are what would relax you: at the time, in the place, at the price, and with the nasty acts that you would actually enjoy, rather than desperately chasing that one $100 bbfs provider for her one slot in the middle of the work week somewhere in west bumblefuck where she hasn't already absorbed liters of jizz by the time you arrive. You'd be surprised by how simply leaning into the real relaxation that you want will help you quit. You will realize that none of these hoes give a fuck about you; they only want the money. It's a job for them like the same job and whatever else it is you're trying to fuck them to get a break from. They might be professional but that is it: they do not and will never like you. You will never fuck your way into their concern or respect, not even when you give them some good dick and make them cum or appear to come. If you hold the line on standards, your ideal circumstances will never materialize: they are never available when it is actually convenient for you/when it would actually be what you want. They are never around in the morning or on the early weekend after a rest when you are rock hard and feeling great. If you even think you found such a ho, know that soon she'll be pimped because the sort of ho of your relaxation dreams - one of those who actually seems to like the nasty shit that relaxes you/who seems to be just into getting fucked - is going to be dominated by some other man who fucks her good enough and then can spring their agenda on her. There are dudes who are great predators: they will find that chick on the same website where you found them. Leaning in is counterintuitive, but it really helps slow you down to a stop: you get the itch, remember that one moment of the perfect hot action, then realize that the latest one you are texting has that thing which annoys or puts you off. It will remind you that for every mind-blowing instance, there were 100 disappointments that you realized after post nut clarity set in. The inertia will set in and instead you'll grab a drink, some, watch a ballgame, jerk off to jappy memories, exercise, take a walk, etc. Soon, you'll come to appreciate the extra free time that you now have not driving around like a lunatic trying to show up for your second boss called the escort whose schedule governs you. Your body will feel relaxed; you will realize how chasing ideal hoes who are disease free was such a burden, and will continue onwards. (You may relapse into type 2 and just need a release because you'll be feeling good. That is ok - in the long term you are quitting.).
4. You love the game of chasing hoes - this is another type that benefits from leaning in. I get it: it sure feels like you're pulling chicks when you just text or dial them up and fuck them, and when you fuck the rainbow. But just lean into the actual game that you miss: the way that you could spit game and pull it down. Again if you have the means just travel, to different parts of your city, around your city/area or to other cities. You'll find a fresh crop of chicks, maybe even more age adjusted up ones, who are like the chicks you remember from your 20s. They are the ones to pull and will give you that rush. If you fall back into type 2, you'll temporarily relapse for a release but keep it moving away from this bullshit.
Just some thoughts!