If you look back, you'll see that every situation that Allah has brought you into has either changed you, helped you grow, made you stronger, taught you a lesson or made you a better person. Everything He does has a purpose.
It's terrifying how quickly the mind forgets an accepted dua. When it's time to ask again we hesitate, feeling insecure about its acceptance, forgetting that we once prayed for the impossible & received more than possible. Don't leave your confidence behind when it's time to ask