Do u think rejection has a bad effect on the individual?

Or it can help them strive for the better since good people don't reject others and would help you fix bad patterns if they have the ability to see it.
For me, I was rejected at a really young age(12yrs old), i live in an arabic society so people around me weren't a great catch 😬 this made me pass through hell and shut down my walls but it made me focus on my growth. I'm really glad no one liked me😂