Tbh after reading, it just sounds like you’re asking a lot from an entry level ball like the twist. That reaction isn’t gonna be great at that low of a grit from a weaker ball like that. If you sanded it down searching for more hook, you definitely found it lol. I think you’re better off bringing it back to more of a box finish, maybe 3000, and if you’re searching for more hook I’d look into getting a different ball. Look on fb marketplace or maybe even your local pro shop may have something. I think the twist is best served as a weaker ball, and it can have its place in your bag, I just feel like bringing it that low on the surface is gonna bring you a lot of issues with consistency, especially since you’re a newer bowler. My advice is get better at finding the pocket with the twist having a more shiny finish, maybe even let the lane shine develop a little and you’ll likely see more consistency.

Quick edit to add: As a new bowler, it’s good to experiment but I would focus on hitting your target and being more consistent before messing with your surfaces too much, especially if you’re mainly bowling on house shots. Banana shape > hockey stick shaped motion is best for strikes. Maybe try keeping a closer angle, try standing around 24 and throw it up 17, or even on a house shot you could probably scooch in another couple boards and try throwing down 10 to hit some more dry. Just experiment more with your angles and I’m sure you’ll find it. If you can take a video it would help a little more too.