Water, stretching the legs, and understanding that you are asking your body to transform. But more importantly, I always remember that when I went 1k to 12k at

Water, stretching the legs, and understanding that you are asking your body to transform. But more importantly, I always remember that when I went 1k to 12k at age 15, it took me six months, running twice a week, pushing like hell through a wall of courage, and I didn’t think it was even possible to run one hour in a row. You may be underestimating what an achievement it is, and be disappointed that it is actually hard. So, keep repeating your best score until you power through it. Also, some people are more made for swimming, others for running.