You don't want to be late to class because you couldn't find your textbook! You should have a separate binder or folder for each class, and it should be clearly marked so you know which one to bring to each of your classes. Do not have an "everything" binder or folder where you keep all of your miscellaneous assignments, notes, and tests from your various classes. This will make you incredibly disorganized, and if you lose that folder or binder, you will lose "everything."
Join a club. You will meet new people, and will have fun pursuing a new interest. An art club, language club, school government, or even a tutoring gig could all help you find what your true mission in life is. High school is your time to figure out what you want to pursue in college, and potentially for the rest of your life, so be receptive to anything that comes your way. Club involvement will also help you look like a stronger candidate when it is time to apply to college. Join your school's Key Club or another volunteering club. Volunteering is a great way to help your community while having