Workout plan to suite me?

I play ringette and want to build up better endurance (cardiac vascular). I live in Ontario Canada so weather soon will be cool and snow in a few months. I want to do this workout plan for as long as I can. I live in a small town so there's no gym to go to and I'm 16 so driving somewhere is out of the picture. I have no workout equipment here at home either. I have places I can jog, stairs to do step ups... Any ideas are greatly appreciated thanks!!