looks like a decent setup for early game. I guess you should work on Olivie, Elaine, Imelia, bernard and a 2nd mage (hope you can get pallis), more or less in that order. I'd say save your SCs until you have 50 for the stamp card, and either roll or expand slots (expanding is recommended over rolling because of hoarding silvers and fairies for efficient leveling and AW'ing in the future). Whenever you get spica, I'd slot her after Olivie and before Elaine.

units are generally considered usable at 50cc40, but I'd recommend getting at least to 50cc50. olivie should get to 53 before feeding black fairies + plat armor for her leveling so you don't burn your gold.