Tough out
Definition 1 of 2
Pro Tip 1/3Emotional Strength
Used to describe moments requiring mental or emotional endurance, rather than physical strength. 
Despite the criticism, she toughed out the negative comments about her performance.
Pro Tip 2/3Not Instant Relief
'Tough out' implies a situation won't improve quickly; it takes time. 
After the injury, he had to tough out weeks of rehabilitation.
Pro Tip 3/3Short-Term Challenge
Often refers to enduring a situation that is temporarily difficult. 
The team had to tough out several losses before their first win.