Firstly, welcome aboard!

Secondly, get used to feeling tired at first. This is normal as you gain muscle and your body adjusts to the new level of activity. Depending on how difficult hills on your route are, you might want to try muscling up one or the lessor ones. That may give you the boost you need on days when you feel like you're dragging.

Again, welcome, and please feel free to ask any questions!

- Andy