How do i get my life in order?

Good evening/Good Morning. I turned 17 a couple months ago. For the past 3yrs i have been living in bliss. Online highschool, living aboard. Just chilling without any care of what was happing and ZERO responsibility outside of chores and helping mom around the house and any physical work that was needed. Now, I returned to the US. I started college last week. Idk, what I'm doing. I know the following: 1. My goals. 2. How to reach my goals. (steps needed to take) I just don't how to structure my life in a way i can balance, my religious goals, personal, school, gym, life. Like, I haven't been consistent. I'm trying to get my self together and when i'm trying to work/grind and put the effort in. Somehow I don't. Excuses arise and by the time i realize. The day has ended. What do I do?