Can I or should I self rehabilitate a torn hamstring?

I blew out my hamstring a week ago and am scheduled to start a long and expensive physical therapy treatment. Because of a high deductible this will cost me a lot of money out of pocket and being athletic, in good shape and cheap, I really feel I can do this on my own. Today is my first day without a brace and the leg feels ready for stretching and I am getting mixed schools of thought as to whether or not doing this myself would be a good idea. I feel my background in yoga gives me most if not all the tools I need to stretch this back out as good if not better than what a PT would do for me and at no cost to me. Any jellies out there with similar experiences or expertise on this matter?? Am I being penny wise and pound foolish??