How to manage time?

How can I learn to manage my time and not procrastinate?

• I'm a freshman in high school and I can never manage my time. I always get like 5-7 hours of sleep, usually about 5 and a half and it makes me so exhausted during the day, so I drink a little bit of coffee and a lot of milk with it which makes me jittery and hyper and I get stomach aches and headaches. If I could manage my time better, I could get my homework done before like 9 or 10 pm and I could get more sleep and overall be more healthier. The problem is, I procrastinate and I tend to take too much time for things. I've tried making a schedule for the day and allowing myself free time but my free time always ends up taking up most of the time for the next thing, so the time I'm ready for bed gets pushed further and further towards midnight. How can I manage my time, not get distracted, and keep myself on schedule? I will award best answer!

• Answer:

  when you get home automaticly do your hw before ANYTHING else!!!! That will help