I'm only in highschool but am I experiencing burnout?

Please take the time to read what I have to say. I'm a sopre in highschool and I am enrolled in 6 AP cles, with the expectation that I get straight A's throughout the year. I play football, rugby, piano, and do martial arts. I have an IQ of 152 as per the Stanford Binet IQ test and am considered to be highly gifted in math, having taken and completed AP Calculus BC and Multivariable Calculus as a freshman in highschool. I got a perfect 240 on the PSAT and will likely qualify for the USA Junior Math Olympiad this year. I apologize for this seemingly unnecessary list; I'm not here to brag, but I need you to understand where I'm coming from. Now my issue is as follows: I am beginning to lose the ability to focus on work, I am incredibly disorganized, and I find that my natural love for learning is taking a backseat to these incredibly high expectations. Although I was relatively popular when I was younger, that is no longer the case. Throughout the course of middle school and high school, I have lost many of my friends simply because I hardly saw them anymore and was too busy with academics and extracurriculars. I'm that quintessential "Know's everybody but has few close friends" kind of person. My true pions are lifting and rapping, neither of which I have any incredible skill at, but both of which I enjoy in a wholesome way that I have trouble enjoying the rest of my life. I fear that I am becoming depressed because I have no chance to do the things I love due to the necessity of remaining true to my seemingly inevitable trajectory towards an Ivy League School. I have begun to hate weekends because they only emphasize my sense of isolation and the fact that all I have to look forward to is more and more work. I am unable to finish my homework or study properly due to a lack of will. This causes me even more stress when I struggle to make up for wasted time and quickly finish work during lunch or my breaks. What would you suggest I do? Please take time to give me some meaningful advice...I truly need it. I have said all of this because I fear that I am losing control of my situation and that I have to make some changes in order to maintain my own wellbeing. What should I do?