For new Daggerheart homebrewers, what’s one thing you wish you’d known before your first class/rule tweak?

Okay, homebrewers, spill the beans, what’s the thing you learned the hard way when you first started tinkering with Daggerheart?

Was it struggling with balance, realizing playtesting is non-negotiable, or discovering that less really can be more? Maybe it was a small detail that completely changed how your class or rule tweak played out.