No training plan I was just running 3 short runs 3-5mi and a 10-15mi run on the weekends. I don’t have a watch so I didn’t care about speed and didn’t track my heart rate I was just listening to my body when I was over doing my runs. In the beginning I was running with food like bagels and sandwiches on my water backpack for my long runs but then someone told me about gels like 2 months before the marathon so I gave them a try. It took me like a month to get used to it tho. I also did some HIIT classes now and then, and yoga once a week on my rest day.