You're not crazy, & that's a great goal! All of us want something in addition to losing weight & becoming more healthy. To recapture some activity that brings us happiness is a wonderful goal. Biking makes perfect sense to me, what a wonderful sense of freedom & symbol of movement/progress. Stick with it & you'll not only lose weight, but achieve your other goals as well. It's important not to just focus on some magic # on the scale. Good luck!
God Bless,
Amy-Lynne