For checking the transcript: https://www.buzzsprout.com/2379282
Bite off more than you can chew
It means to take on more responsibility or work than you can actually handle.
Examples:
1- I told my boss I could finish three reports by Friday, but now I’m staying up all night. I definitely bit off more than I can chew.
2- He thought learning two languages and playing in a band during his first year of college would be easy. He totally bit off more than he could chew.
