That said, don't neglect the events if you can. Even if you can't get the welfare servant (and all of their Ascension materials), there are valuable 4* Exp cards and 3* Fou's usually in the event shops. Not to mention often difficult to obtain Skill Up/Ascension mats too.
With that said, bum rush this event now, while you still have time to. Between the bunch of us I know you have on your friends list with high level Nobus, Okitas, and/or Hijikatas, you should have very little trouble for most of this event, since all three of them get a massive buff to their damage on top of the relatively mid-tier strength of the enemy forces.
The
next event will likely be beyond you, however. It demands you've beaten the entire first part of the game (and get that golden cross on your profile), and we're not quite up to the part where Support Servants only can get you all the way there. You do get 1/2 AP Main Quests right now, though, and the event lasts 21 days after that.
In roll news, I tossed a bunch of tickets into the White UMU banner and ended up getting red UMU instead. I am fully prepared to whale a bit for Meltryllis and/or Kiara; though given how volatile my luck's been up lately, that only means I'm willing to buy Quartz once for them and am also fully prepared to get zero Alter Egos this time around.