Well I'm going to be a senior in high school this year, so I'm not sure what college is really like, but don't stress too much about it. Yes, you want to do well in high school and on your standardized tests and extracurriculars but you should also have time to just be you and do what you actually enjoy. Also, not everyone knows what they want to do in life. I happen to think I know what I want to go into, but I have friends who have no clue. I think you just have to find what you really enjoy and go with that - as long as you keep trying new things you'll come across something, somewhere down the line, that you can see yourself doing in the future.
I understand the stress, but honestly, don't worry too much. It won't help you at all. Just be conscious of what your doing and do your best! No one can really tell you what to do with your life.
sakura haruno, shippuden (naruto) 70% | morgiana (magi) 75%