I'd like to know if these two expressions have the same meaning or if they are normally used in different context.
1) You think you should prove/challenge yourself, otherwise you'll never be able to demonstrate you are not a shy guy.
Would you please write some examples? I'd like to understand the difference between them through the use of practical examples...
Basically, I would say we prove ourselves to others on external standards, whereas we challenge ourselves because we have our own standards toward which we hope to excel.