Tears are perhaps 1% water but 99% emotions. They contain hurt, pain, sorrow, disappointment, sadness… so cry sometimes and let go of the feelings welling in your heart. Crying won't necessarily solve your problems but it will make you feel better.
When you love someone very much, you'd have to go through every tear, every heartache, every pain. Cause in the end, it's not how much you suffered but how you loved.
Sometimes you need to be terrified to your bones, in order for you to find your way to safety. Pain somewhat has this ability to push you beyond your comfort zone so that you can come back even stronger. To me, obstacles are not a hindrance but as stepping stones to success.