Pull advice & team building for unlucky F2P

Currently on 50/50 with 40 pity. 125 wishes available + 30 more in shop currency. Considering remaining wishes in 3.1 (probably around 18 + around 50% jades left from DU) and around 110-120 in the next patch, I think I would be able to get 2 limited characters or 1 E0S1.

Like I said, I'm very unlucky and lose almost all my 50/50 & 75/25 so I need to secure 140-150 wishes for one limited unit to guarantee them.

My current predicament is that I wanted Castorice for the longest of time, she was supposed to be my first limited Quantum DPS. But she has no F2P friendly LC alternatives (I superimposed Herta LC) and Sunday/RMC combo turned out not to be her top choice. Not to mention Anaxa is simply beautiful.

Currently I have no problem clearing any content and Herta/JingYuan will probably be able to brute force everything for a while. So my question is, what would you do in my situation:

  • Tribbie E0 DDD + Anaxa E0 event LC

  • Castorice E0 Forgotten Hall LC + Anaxa E0 event LC and praying Casie will somehow manage with Sunday RMC and Gallagher or Luocha

  • Supposedly Fugue E0 S2 Luka LC + Anaxa E0 event LC (but it's a risky option since reruns are still subject to change till next Friday's livestream). This would surely upgrade my Boothill/Himeko

As for future characters I'm very much interested in Mr (redacted 1) Fire Preservation, (redacted 2), Hysilens, maybe Cipher or Phainon depending if they are interesting in combat (like that scrapped additional DMG planar coming back to someone)

Also important question - my Herta team at the moment is E0 Himeko LC Herta, Wind set 160+ Passkey Serval, 160+ SPD E6 RMC and Gallagher or Aventurine depending on the content. But I borrowed my friend's Tribbie to clear some CoVs with her Tribbie in place of RMC and my dmg was significantly lower? We're talking 100k less on enhanced skill on 5 enemies scenario with skill/ult active vs Mem support. What could possibly happen here? Does E0 Tribbie have lower DMG on DPS but compensate it in a different way? Her personal DMG wasn't spectacular. Or was it built issue? She had Quantum set with 55:200 out of combat crit ratio and S5 DDD

Thanks a lot and I would appreciate any suggestions or even propositions that aren't here at the moment