The farthest I went was Calculus II in college.  Do I use advanced calculus in my everyday life?  No.  \n\nHowever, it's not the idea of using it in everyday life, it's the problem solving skills you gain that make you smarter.  It helps to show you there are many ways to approach problems and helps you choose the best way to try solving them.  Don't give up on difficult subjects like these in school.  While you may not use the concepts day to day, you'll use problems solving skills every day for the rest of your life.
How far did you go in Math? Algebra? Calulus 18? lol, Does it help you in life today? Or was it worthless?