Best advice yet. This can be a serious matter as my 19 year old sister has a 3 year old. I wasn't around when my sister may have needed me most (in college) and our Mom commuted over an hour to and from work. Our father is/was?? a huge alcoholic as well, and a month ago we both saw him for the first time in 15 years.
If nothing else, help your sister out with what she may need and you might be so busy helping her you may forget the stuff in your head, or even learn something along the way to help you out.
Hope things get better and believe me when I say college is where it's at; the best time of your life is there. Your Freshman year of college you will find that magically everyone matures and stops bullying, let's say they have been 'weeded out' by survival of the fittest in the new enviornment

Plus the women are HOT.
Jerome