<p>Go to Japan for the summer. It will almost certainly be a life-changing experience. Calculus usually isn’t. Top schools will understand if you tell that that you had to make a choice and this was the choice you made and why, and how that fits in with your personal goals. </p>
<p>If you feel you absolutely must take calculus, take it on-line in a self-paced course during the school year. Johns Hopkins and Stanford both offer this and there are probably many others.</p>