Everything in life happens for a reason. You may not know why right away but there will come a time where it will all make sense (and you will experience what I call the “ah-hah” moment). So whatever the challenge, just remember that there is always purpose behind it. You are not going through it for nothing. You are not wasting your time.
Everything you go through is meant to teach you, strengthen you and “grow you” into the person you are meant to be. So, why not think about the life lessons behind every challenge you face and accept your growth (regardless of the outcome). It will be one of the best things you can do for yourself.