as you make your bed, so you must lie in it

As you make your bed, so you must lie in it (one has to live with the consequences of one's actions, and one has to take the responsibility for them) — что посеешь, то и пожнешь

Example: "You think all the trouble you caused your mother will just disappear over night? You made your bed, now you have to sleep in it."

Note:
This variation is far more commonly used than [as you sow, so shall you reap].