I'm repeating week 1 because I was struggling and I didn't want to injure myself. Got some really good advice from a friend (the only person who knows I'm trying running for the first time ever). 1. Go to a store specializing in running shoes or at least trained in fitting footwear. I sucked it up and went and found out that my feet turn in when I step. Spent the money for the recommended and very expensive shoes and started week 1 for the second week. The shoes made a world of difference. They really helped with leg and foot cramps and made running much more comfortable. Glad I spent the money. So try a pair of "good" shoes. The second piece of advice was to be as kind to myself as I would somebody else who was struggling with something new. So I'm giving that a shot and going for round two of week one.
Hope it helps to know you're not alone in your struggles.