i cut my own slack - A dumb way of saying you’re too proud to ask for help, even

A dumb way of saying you’re too proud to ask for help, even if it's right in front of you, and you'd rather do it yourself.

I cut my own slack. You're still trying to get your mom to help you, and I already finished my homework and got my snack.

I cut my own slack. You're still fighting with your brother, and I already finished my math and got my candy.

I cut my own slack. You're still waiting for your friend to help you, and I already finished my work and had my lunch.