Am I On The Right Track For Getting Into A Good College?

It’s always been my dream since I was about in the 3rd grade to go to Stanford and am going to do everything in my power to best my chances of getting in. I’m currently a freshmen at a prestigious prep school, but our school doesn’t give out A+s and the best gpa you can get is a 4.0. I just finished my first semester and got all As, with the exception of PE, which due to my asthma, I performed poorly on the fitness testing. I’m currently taking:
Geometry Honors, PE I, Fine Arts (graduation requirement), World History (no honors history available for freshmen), English I Honors, Faith Formation, and Spanish II
Next year I plan on taking:
Precalculus Honors, Health, English II Honors, Hebrew Scripture, Spanish III Honors, Physics Honors, and either Chinese I or Journalism
Is this a good path? Note that the Geometry Honors is extremely accelerated and covers algebra II and Trig. Am I doing enough to get into Stanford? I’m also in the winter musical, part of drama club, and on the tennis team. Is it okay that my school doesn’t weight my grades? Will Stanford compare my unweighted gpa to someone else’s weighted gpa? Should I attempt to write a book? I love to write and English is my biggest passion. I know I’m only a freshmen, but I want to stand out. I’m not questioning whether I’m smart enough, but I’m questioning whether that A- in pe will hurt my chances of getting in and whether I’m on the right track. Any insight would be very helpful!