you actually have better raritys than me lol. I only have 1 5* and 6 4* now. after 2 10+1 rolls.
what you probably need is to level your core team up more. to 50evo30 with 100% affection. which you will get there eventually. then you'll be good. and like tenhou said, farming 2-1 is good.
also, dailies is not actually efficient for manyu. because no exp. when early on, the exp gives you levels = more stamina = more runs = more manyu.

regarding what moople said about team setup:
my farming team: (for reference)



vs my high power team: