You can’t win them all
Definition 1 of 1
Pro Tip 1/3Accepting Defeat
Used to express acknowledgment of a loss or failure without getting too discouraged. 
They played hard in the final, but you can't win them all.
Pro Tip 2/3Emotional Consolation
Offers comfort after a disappointment by reminding that success isn't constant. 
After the spelling bee, I told her 'you can't win them all' and smiled.
Pro Tip 3/3Being Realistic
Encourages a realistic outlook on achievements and efforts, acknowledging limitations. 
You can't win them all, but you'll get better with practice.