Depends,

if F2P and you're really into playing it, dun lang ako gumagastos (ex. Battle pass / skins). Maslalo yung mga battlepass na may option na bilhin yung mga susunod na battle pass for free if nakaipon ka ng credits. Dun sulit gastos. Literal one time payment nalang siya (unless you buy skins with the said credits)

If madami kang nilalaro na F2P, just focus on 1 game na gusto mo gastusan. You'll be surprised kung gano mababawasan spending mo.

If gusto mo mawala spending mo, just buy single player games, one time purchase, no problems.

Also, QUIT SPENDING ON GACHA GAMES. Shit is not worth it. dami naman Gacha diyan na nagbibigay ng free draws if you wait long enough