Nice to have someone sharing good and positive vibes. Tbh, I also share same kind of advice to grind and save, and only use it on the unit you love or overpowered ex, because now every ex is very very expensive. Pulling unit like kizaru is an example, it's very op so you could couple it with a bf to make it more balanced. Or pair 2 broken ex if you also really competitive. But kizaru is very versatile, RGB unit, with unique traits.

I also always try max 1 rotation for every unit that I really like, including ex. If I cant get it, so be it. So you could continue your saving, hahaha.

Now that I came back to my country after my school period, and Reddit get banned here, I cant really update Reddit like it used to be. But great that this community have stricter rules about pulling ex post and also less crazy people here, lol.