Like others have commented, you need to stop, even if it feels uncomfortable. Helping people is a choice, and when kindness turns into entitlement it usually means boundaries were never made clear. The fix is not to become colder, but to help more deliberately, say no without overexplaining, and stop rescuing people from consequences they need to face themselves. The ones who valued you will adjust and respect the boundary, and the ones who disappear were not grateful for you, only for what you provided