If abstinence is the key for seduction success, Ill do it, but its hard to resist when your making your d bigger.
It's cool that you'll do (or at least say you'll do) anything for seduction, but I think you're obsessing too much about you dick size. As long it's not too small, it generally doesn't matter that much. Yes, girls prefer bigger Ds, for the most part (though some told me longer ones can hurt them too much sometimes and take away from the pleasure, they prefering thicker than longer lol).
Dominance, getting the girl confortable and following your lead (immersion), physical technique and this type of stuff is much, much more important in sex than your size (maybe your size can help you get laid if word gets around you have a big D, but I think that without being a good lover, or even having sex in the first place, that won't happen anyway, so...)
I think figuring out what you do with porn and or masturbation is a very critical part of fundamentals that isn't written about enough. (Does every guy have a battle with porn?) For me, it has been the most important fundamental and the number one issue that I have been experimenting with to get right. I feel like I am in a decent place now.
I've watched quite a lot of porn in my life and I still masturbate at least once a day.
I never got into the weirder porn stuff (like with animals, gay/shemale, whatever the fuck, piss/poopplay), and even just normal porn would become very much boring to me after a while, so I would switch to watching hentai, seeing just pictures of sexy girls showing off their bodies, or just fantasizing about girls from school/work/wherever else.
To me, I think I mostly just need something really sexual to get my erection/will to fuck going, but after that I would need to fantasize about actually fucking the girl and enjoying her body, dominating her and that type of stuff to get off. Like I would see (accidentaly) porn with guys with weird dicks or old men and just get turned off and not even be able to hold and erection, even if the girl was hot, because I felt really disconnected. But I still masturbate a lot, I think I must have a really high sex drive, or maybe I just got "addicted" to sexualizing things? Dunno, but I think it hardly hurts my ability to approach and then get sexual with girls, if anything, I think being so "sexual" and open about it actually helps me.
As an example, yesterday I was going out with a (male) friend, to eat and drink something, on this place where there's a bunch of posh hot girls hanging out. We always talk about approaching girls there, but I often don't and just chicken (I had some decent success with night game, having kissed around a hundred girls, almost all of which would have their asses squeezed by moi, I would even finger some on the dancefloor, and I ended up sleeping with around 10, even if I lived with my parents and had no money for a motel or a car for backseat sex or anything like that back then).
This time, though, my friend told me, "we're not leaving until you approach!", so I just went and opened the hottest girl there out of the blue and got her Instagram. But a few hours earlier (like 3?), I had just masturbated back at home, as I was on Tinder and there were some girls in really revealing clothes and poses, so I felt super horny and had to. So I think, for me, this doesn't hurt my seduction skills, but everyone is different. You should definitely try to stop seeing porn and masturbating too often for a while to see if it helps, specially so you can't use the "I just masturbated" excuse to not approach or fuck up your sets (which totally will happen, as our brain will create any stupid excuse to prevent us from doing something that we're not familiar with and maybe could be dangerous, such as approaching a girl or suggesting you should do whatever hehe).
But maybe I'm not the best example. When we were waiting in line to enter this place, like a little after an hour after having a good wank, I was almost getting hard looking at this girl right in front of us in line. This girl was wearing high heels (little boots?) and pantyhose with some really tight skirt made of some wool type of fabric, that reaally accentuated the big shape of her magnificient round ass. Like geeeeez, this girl was fine as hell, and I was super horny for her not even two hours after masturbating (to be fair, maybe being soo horny for her could have fucked up seduction, and I didn't even try to talk to her, as I was mesmerized looking at her ass and tights, but c'mon, this girl is an exception lol).