As an advisement to high school seniors, I would recommend that they make a list of all of the possible careers they want to pursue and decide which one interests them the most. After deciding which career path they want to take, I advise that they talk to a univeristy or college counselor to seek information on the requirements involved to be accepted into that college or univeristy. In doing so, try to apply for scholarships and grants ahead of time to get financial assistance on college tuition, dorms (if applicable), books, and for personal use. In addition to this, get a pre-major guide for the major you are pursuing, and follow it. Try your best at earning an "A" in each course, this will increase your GPA (Grade Point Average) and will give you a better chance at getting into the university you apply into. As a student always be respectful to others, take notes on each class lecture and study them.
I just want you to know you are living, quite possibly, the most important years of your life. You've beat around the bush until you've come to the end of your childhood, and you have little to show for it. Don't waste anymore time. Its running out. You should realy join a band. Buckle down and become an artesian of music. It would be a shame to let your talent go to waste. Explore some careers and discover your interests, don't wait until your first year of college is over. You have to stop procrastinating. Its going to end up biting you in the ass. Believe me, I know.