I am short on all resources

Any emblem of better quality 4-5* Are upgraded to L10 and after that with the 5% success rate its a work to max one then move to the next.
3* Emblems go to L10 to gain the main part of the bonuses. They still can be useful, are not expensive to upgrade and can be slowly transferred out as you get better emblems later on.

Candies - same as everybody here, short on them constantly.
Metal - yeah short on those, Got two girls to max, and blasted through all I had, with a small reserve stashed away for factory.

I agree with the nicely written long post by Unregistered. Since they transferred the game to Adult site, the games shifts from your usual grindy RPG to Waifu RPG, and as such the priorities differ a lot, since Waifu games need other things going for them, things that make them waifu games.

As I see it, at this pace, this game will Crash and Burn on Nutaku within half a year. Just like Senpro, Kampani Girls and others did.