Not good to run every day?? Thats nonsense! Cardio every day is great for you. Dont you let anyone tell you otherwise.
I like to tell my soldiers to do what you can on day one. Day 2 go further or same distance but beat the time you did before. Skip days here and there because it's not good to run everyday. Also you need other workouts in your life. The next day you run go further and faster and keep trying to beat your records