Hey man, can I give you my opinion about this?
Maybe trying not to relapse at all in 6 months is scary. Try instead to reduce the number of relapses each month. Think about how many times you PMO, on average, in one month and try to reduce that. This means less relapses and more days of rewiring. When you cannot go many days without PMO, it's daunting to think about going a whole month without even 1 relapse. It's probably impossible at this stage so that why I think a better idea is to reduce the number of PMO sessions. With time, your brain will rewire for less PMO. The number of times you PMO will decrease to zero but this is a plan, it won't happen overnight. This is a program that you will follow to accomplish that. I know that we are tired of PMO. We want to stop tomorrow and never do it again but we rewired our brain to PMO for years, it won't take just 1 days to rewire back to normal. This is what we have to understand: It takes time. That's why, because it takes time, we need a plan to follow until we get better. Also, avoid binges. if you PMO, do it once, don't indulge in long edging sessions, and be done with it. Then think about why you relapsed, see the mistake and try not to make it again next time. For example, I relapsed because I sat in front of the computer while having hard urges and I didn't do anything about it, thinking that I could overcome it with willpower. It didn't work. This time I have a plan for urges. Never to repeat the same mistake. Also, I relapsed because of alcohol. I will not drink again, at least for a while, for some months maybe, so that alcohol could not sabotage me.
And very important: Don't let yourself become super depressed. I know that feeling sad is inevitable after relapses but beating yourself up and getting very depressed is detrimental. It's a good facilitator for consecutive relapses and binges. Think about the plan, think about what made you relapse and tell yourself: "Okay, I know what to do. I don't need to feel crushed about it."
One last thing: Thinking about quitting P is thinking about P. Thinking about how hard it is to quit P is thinking about P. Those put P in your mind all the time. Try thinking more about what you have to do during the day and less about the P.