I really wish I could help you out with some of my own knowledge but I'm young and not wise in the "wife searching" department or whatever. But what I can say is that I've had multitudes of times when I just felt like giving up nofap because it just seemed like the ends don't justify the means. All this nofapping and the end result is nothing(Although that is definitely not the case).

But in reality you are doing so much good, you are avoiding watching things that are haram, you are constantly building yourself to become more strong in your iman and you're constantly being a better Muslim. Furthermore if you relapse now, in a weeks time you will regret doing it and will beg to god to get back those 100 days you just threw away. And 170 days is very little time in relation to how long our lives are and compared to how long we've been a part of this addiction.

I don't want to see you failing and hopefully by the end of this year you and me both get an extra 150 days in our belt. Stay strong. Do this to become a better Muslim. I hope for the best for you :)