Struggling already

Alright so I've been playing since that froggy outfit came out and I've got both the froggy outfit as well as the current 5* gacha. That alone was enough to make me grind hard for the gems I needed. Does anyone else have that problem as well? Atm, I really don't know what to do to earn the gems in a proper way except for grinding really hard 😭 I've done the main quest, a big part of the world and random quests as well (still got some open, just in case I need them lol), I did most of those game challenges across the maps, all of the styling challenges.. Is it a me problem?? Anyone got any tips??

EDIT: Since there's already a ton of comments pointing that out - I know that gacha games are meant to favor paid players!

I know that but imo Infinity Nikki really makes it a little harder than some other games I've played, so that's why I was asking for tips! Thanks to everyone who gave me a tip or two, I'll def check those out!