Though I've made the switch from traditional publishing to indie publishing, it hasn't been that long ago that I struggled with receiving rejection letters. And being an independent author comes with its own difficulties. No matter what path you take in your writing career, there will always be bad days looming in the future. I hope these steps will help you survive your next bad day.
For spiritual guidance on this topic, I highly recommend listening to Church of the Highlands' How to Live Through a Bad Day series.