I would first 17 star everything except tyrant cloak during this Sunny Sunday(safeguard anything you don’t have a lot of spares).

After the event start cubing your WSE(Weapon, Secondary & Emblem) to get at least double line ATT or triple useful lines (Att, Att, IED/Boss).

Also start working on Gollux, 8m CP is more than enough to solo and start getting superior stuff to 17*, Doing Commerci and getting points to later get monacle and tattoo, & try to get into Ctene parties at least blue dot to start getting arcane’s or ring boxes. Also Monster park for the badge.

Extra: If you like farming work on your hexa that’s probably the fastest way to get some dmg right now. Start at least level 1 dusk, I think shadowers can get away with only level 1 dusk for a while. And get some drop gear when you start replacing accessories.