It doesn't have to be the same every day, arrange to do something different in your spare time to look forward to.

Sounds like you need to find a new favourite hobby. Learning and exercise make a soul happy.

I know that feeling

Take a bike ride or go for a hike. Go to museum. Catch some live music. Once a year go someplace you've never been before.

"Every day is Exactly the Same" by Nine Inch Nails. You should check that song out.

What does that have to do with Friday?