Fate/Grand Order

Revan, what kind of playstyle do you have? Given the lack of cubes to max out skills, I can assume you don't really grind events, meaning you have a limited number of "waifus" that you level up everything for, while others get nothing or are completely ignored? And do you also ignore challenges, including those on Gilfest?
I'm just here, grinding the Gilfest roulette, thinking about how soon all the Lancers, Assassins, and Riders in my Chaldea will be fully leveled up (at least in terms of levels, not skills), and I was wondering about different playstyles. It's a shame that only you and I are playing this game on the forum.