How necessary is college education?

For me college is the most  important step in life, because depending on what you study is how your future is going to be, in what are you are going to work, where and with what type of people you are going to be related. So is very important to know well what are you are going to study and you have to be focused in your career and you have to put all your mind and put all your effort and do the best you can to be the best ever.