What is rejection?
When do you feel rejected?
How do you deal with it?
Know what and why you believe: What do you believe in and why do you believe it, and does it work for you?
How does this belief or set of values or philosophy or whatever you have, help you to cope with the difficulties, stress, indecision, and pain in your life- especially rejection of any kind?
I’d encourage you reflect or journal with questions too.