I know how to ride a bike and etc, but now I'm looking into actually using a bike. I'm 5'3 and 114lbs, I'm slim but I'm not strong with regards to biking. I'm pretty weak with endurance. I plan on riding this bike to school and around town. With school I'm going to be having a bunch of books. So I need a bike that is comfortable. Is there a bike you guys suggest? Thanks