Is it bad that I don't have any after high school plans?

I just graduated, and I was just like you, but I can honestly say that I changed my mind about what I wanted to do probably about 15 times. Get good grades in high school, like a 3.5 or more so that you can have the option to go where ever and not be shut out because of grades. Also remember to have fun though, don't be the kid who only devotes themselves to school. Colleges look for well rounded kids, join a sport or some clubs. Other than that you don't need to figure out what you want to do, you are still young, you still have time.