When all that matters for you is fun and parties, you forget about the meaning of life. Life is about love and family and making something of yourself. The only thing that you get from fun and parties is a moment satisfaction, satisfaction that in time disappears, and then you will understand that you got to far and there is nothing you can do. You can only end up being a junkie or an alcoholic, stealing from people to get something to drink or to buy drugs.
Don't smoke, drink or use drugs because you are slowly killing yourself , by not being able to stop yourself because of the excessive usage of any of those three. Don't guide your life after the saying "Carpe diem" (Cease the day) because you will end up being dead or making a lot of people suffer. Irresponsibility leads to death, and the only path you can chose to go if you want to make something of yourself is to study hard and let other people have their "fun" with smoking, drinking or getting high. Your future depends on what you are doing in school and collage. If you try to study hard you will make something of yourself and get a good job, but if you feel like partying you will surely end up bad. You should know from the beginning of high school what you want from your life, and I am sure you don't want to be a junkie, because lot of kids have big dreams in their childhood, dreams in which they are astronauts, presidents or all sort of childish thoughts that give away little by little because of the reality that they are facing.
Being mature enough to stay away from all those life-sucking addictions makes your future brighter and the life that you dream on closer every day. So, before you drink, smoke or drug yourself think at your family because they only want what's best for you. They will try to make all that's in their power to stop you to become an alcohol, cigarettes or drugs addict.