Hi! You’re not alone. I like the advice that Diamond gave you. My advice is similar, and based on what helped me when I was in your shoes (for almost two months. Awful).
1. Turn off news.
2. Turn off phone.
3. Go for 15 minute walk, rain or shine.
3. Pick up one bill and pay it or file it.
4. Pick up one unfinished art project. If you don’t like it, toss it. If you do, finish the art project.
5. Repeat the next day.
Do this every morning, and then the afternoons and evenings get better. Soon, it’s easy to have a great entire day.