It's ok to get frustrated when things go wrong. But you don't want to live there.
It's important to
TRUST THE PROCESS
Know that you are exactly where you are supposed to be on the path of life.
Everything you experience, both good and bad, is shaping you into an amazing person, a unique individual with unique abilities to help others.
I know it doesn't seem so great when you're knee deep in it, but trust me, you'll come out the other side stronger for it. And when you use your skills to help someone else through it, it will all make sense. Trust the Process.