As you make your bed so you must lie on it.

A person's actions shape what happens next, and they may have to accept the results even when those results are unpleasant.

The proverb places responsibility on the person who made the choice. It suggests that regretting an outcome does not undo the decision that led to it.

Use it when someone faces a foreseeable consequence of a decision they made. It can sound harsh if the person had little control over the situation, so consider whether the outcome was truly their responsibility.