You’ve made your bed and you must lie in/on it
Definition 1 of 1
Pro Tip 1/3Consequence Focus
This phrase emphasizes responsibility for one's choices, often with a hint of disapproval or a tough-love attitude. 
She chose to drop out of school; now she’s made her bed and must lie in it.
Pro Tip 2/3Irreversible Actions
It suggests that the situation is the direct outcome of one's actions, and it's too late to change it now. 
You decided not to study; you’ve made your bed, now lie in it during the test.
Pro Tip 3/3No Sympathy
There's usually no sympathy for the person; it implies they must accept the situation without expecting help. 
You ignored the deadline, so you’ve made your bed and now you must lie in it.