I don’t think you need to live like this, frankly. It really is fine to take calculus and AP physics as a senior- at least at most schools. Another thing: many students who get 5’s on AP physics choose to take the intro course in college anyway.
Your user name is “lookingtoHarvard” which is a little worrisome 
I don’t think Harvard will care as much as you think about some of these things. And rather than tailoring your schedule for admissions, try to take what interests you and leave some time for other things too.
Your fear that not taking calculus as a junior will cause lower grades in physics which will then cause you to be rejected by Harvard is not well-founded and might just be overthinking things a little.
. There are many great schools out there and with your obvious intelligence and drive, you will land in a great place.
Your summer sounds like it will be full. Hope you enjoy it!