For various reasons, I've had a few days of late in which I've really needed to practice what I'm preaching (check out my recent letter at Letters to My Sisters...). I've found some resources that have helped me in the battle to choose joy, when there is no desire to do so:
Daily Audio Bible app
Piper's Solid Joys Devo and app
31 Days of Praise
Contemplative Prayer by Bjorkland
I hope some of these resources will be helpful to you as you fight through your own discouragements and disappointments. The enemy is real, but He who is in you is greater!
**The books above are affiliate links...
Many blessings my friend,