I usually say that age is not a barrier, but the reality is that you’re in high school and she’s a legal adult in the working world, and the gap is too great for this to work. In fact, as an adult, she shouldn’t be getting involved with minors (Sorry! I know you’re very mature, the reality is you’re still a minor teenager 😳 ).
My advice is to enjoy the fact that you have a crush on her, but let it go as a crush. Focus on getting dating experience with other teenagers. You can still go for an older woman, but make it a 17 year old!
I hope that helps.