Er.....OK.
So you are OK for money, and your boss will let you work from home, which you prefer. You don't need to keep working. So you are free to choose. But you will probably carry on if you can't think of anything better? In that case, my advice, for whatever it is worth, is not to worry about keeping on with your work or feeling that you are in a "rut".
Do you know Larkin's poem "Toads Revisited"? It is an older man's retake of his youthful poem asking "Why should I let the toad Work squat on my life?". In "Toads Revisited", he considers retirement, but in the end thinks to himself no, it is better to carry on working than just becoming aimless, like so many fools. it ends: "Give me your arm, old toad. Help me down cemetery road." A lot of people come to that conclusion. For a while, at least.