i cut my own slack - A stupid way of saying you're too lazy to ask anyone else, s

A stupid way of saying you're too lazy to ask anyone else, so you just do everything yourself, even if it takes forever.

I cut my own slack. You're still waiting for your brother to help you, and I already finished my work and got my snack.

I cut my own slack. You're still trying to get your friend to help you, and I already finished my math and got my candy.

I cut my own slack. You're still waiting for your mom to pick you up, and I already finished my homework and had my snack.