I decided a couple months ago that I was going to ride a century before I turn 40 (I'm currently less than a month away from 38). I've been riding like crazy and increasing my mileage significantly but not really on any specific training plan. My longest ride so far is 26.27 miles. I've lost 35 pounds so far but am still in the category of morbidly obese. I'm torn between riding as if nothing is wrong with me and "training" for my century or riding just to get some of this weight off and focusing on things like hills, endurance and power later. Any suggestions?