No matter who you are, we all face storms in our lives. They come in all kinds of different ways: sickness, disasters, loss, hurt, etc. They are there for a reason, to teach us. When facing a storm, it can teach us to not rely on ourselves. We are powerless but with God 'all things are possible' and He can calm the storm. On the other hand, He can keep the storm going to teach you to trust in Him and His timing. When asking 'is this ever going to end?', the outcome can teach you patience and perserverance thru that difficult time.
The next time you're in a storm, ask yourself 'What is God trying to teach me from this?' I bet the quicker we learn, the quicker it'll be over. I suppose too that we often have to endure similar storms because God knows our weak areas of learning.