Congrats! Your heart and your waistline will both thank you. By the time you start to SEE a difference, you will have started to FEEL a huge difference. Let your body tell you how much to "push". Address the issues/problems that arise to what best suits your commute. Sometimes it takes more than one try to figure out what works best. Lots of good info from folks that have been doing this for some time to be found on this forum. Good luck, BE SAFE, and stick with it.