How do I get my work done and hand it in on time in high school?

Make sure to manage your time efficiently. Do your homework first when you get home from school, then use what time is remaining for hanging out with friends, going on YouTube/Facebook, playing video games, etc. If you have a project due, start it early instead of leaving it to the last minute. Work on it a little every night after you've finished your daily homework so that it won't feel like such a task to do it all at once. Understand that handing things in completed and on time will have a direct result on your grade and will help you get into college.