How do you keep your parrot mentally stimulated without exhausting yourself?

I love keeping my parrot busy, but honestly, it can be draining.
Between foraging games, training, and constant interaction, I sometimes feel like I can’t keep up.

I don’t want them to get bored or start developing bad habits, but I also need to pace myself.

How do you keep your bird’s mind active without feeling burnt out?
Any low-effort but engaging activities you’ve found work well?