I have crossed the rubicon - You've made a decision so bad it's like you're stuck in a to

You've made a decision so bad it's like you're stuck in a toilet forever.

He signed up for a 100-day fitness challenge. I have crossed the rubicon.

She moved to a tiny apartment just to be closer to her mom. I have crossed the rubicon.

He bet his last dollar on a coin flip. I have crossed the rubicon.