I could see myself getting tired or being a bike commuter if I had to do it day and day out.
I do recall having these thoughts when I had a long commuter, 17 miles each way. I would get easily burnt out on it. But on the days that I decided to drive rather than take my bike, I hated every second that I sat in traffic. Oooh it annoyed me so much that I had to sit in my car for an hour and half just to get home. You know when I would take my bike, it would take me less time to ride the 17 miles than it did to drive it.
I guess the best cure for feeling burnt out is to ride. I know it sounds funny but all that resentment that I would have before the ride simply vanishes as I’m pedaling away.