I really wanna like this game cause it’s clear a TON of passion went into making it, which I always love w/ porn games, but I am just miserable at the card game. It feels like gambling w/ extra steps and I have no clue how you’re meant to actually win outside of just getting lucky.
The consumables (on the right side of your cards) give you an edge and help you win battles you'd otherwise lose. Taking note of the seasonal buffs and building your deck around those stronger cards also gives you an advantage. If all else fails, raw power might just be the answer, levelling up as the boss battles don't scale or going on easier SMS dates.
The way I kinda got around the difficulty was to just build up a ton of levels. Earn money and buy card packs, sell the valuable ones cause they can pay a lot + selling grants XP. Once you have some levels you can start stacking your deck with some higher power cards which make the combat a fuckton easier. The finger cards are useful with this too cause they always do damage, so its a quick way to smash through some health.