I'm willing to bet you didn't get into your current shape in only a few months. It's more likely been years in the making. It can't be undone in a mere couple months worth of cycling. It's best to set small, achievable goals and focus on an overall lifestyle approach to your health and fitness. Throw away the calendars, scales, and agendas and just enjoy the rides. Destinations make great goals. Pick a few and if you can't make it... no worries. Maybe next time. All you really have to do is make sure there is a next time. Keep the "next times" coming and the details will work themselves out. Honestly.
-Kedosto