Make or break somebody/something
Definition 1 of 1
Pro Tip 1/3Decision Impact
Used when a decision has significant positive or negative consequences. 
Choosing the right college may make or break your future opportunities.
Pro Tip 2/3Critical Moments
Refers to a crucial time when the outcome will strongly influence future results. 
The final exam will make or break his chance of passing the class.
Pro Tip 3/3Emotional Weight
Conveys the emotional stakes involved in a success or a failure. 
Her performance tonight will make or break her confidence.