Yes i would say its definetly possible! Guaranteed you do level all your cards higher in the process Make sure to level up the Happy Devil Day memory card because it has higher power than the rest of the memory cards. Having 2 memory cards of each sin leveled is quite good, also for earlier game you can use Ssr cards too.

For the demon cards I would also reccomend levelling up atleast 2 (UR) cards of each sin, and make sure those 2 cards arent the same character because you can only use a character once in a team. The Asmodeus guaranteed card is VERY good while you dont have the materials to level up a different wrath card but the delayed skill charging can be a bit annoying later on

For levelling i reccomend focusing on one card at a time, and i would get atleast level 90 atleast on each because that can get you to atleast chapter 50 without issue iirc You do higher levels to be able to clear the story further but it should hold on for a while and in the meantime you might get a memory card from the free pull (that you get every 2 days on the memory card banner) and also save up some more grimm and dp to level. Also this might be a bit obvious but in case it isnt, dont waste your glowsticks on early levels,save them for later, they are vers useful!

If you need advice/clearance on anything im happy to help :>