Update

Whew! I've really been pushing myself on the treadmill and today I walked a mile in 20:36. I almost made it under 20. Woohoo!! I've been walking on the treadmill and then doing all the exercises on the machines and then trying to also get in 20 minutes on the bike. Hopefully one of these days I'll be able to see some results from all this work. Until then I'll just keep pushing myself.