One of the challenges of depression is that people feel alone, I am posting a talk from Psalm 42 (click on the link above) that I gave at another church to hopefully help those who are in the midst of the struggle - you're not alone. I hope the talk helps us all to better understand depression and care for those suffering with it.
Since I gave the talk I've also come across this helpful little book about Spurgeon and his long struggle with depression: https://www.icmbooksdirect.co.uk/product/22101/spurgeon-s-sorrows
Praying for any facing this particular challenge at the moment. There is a day coming when God will wipe away every tear (Revelation 21).