Good grief, I forgot she’s only 12 with all the talk of AP classes, etc.! Carry on with what you’re doing. Time will take it from you soon enough.
Which sort of segues nicely into my thought that planning out a 4-year class schedule for your daughter seems to be premature since not only are there no acceptances in hand, no applications have even been sent in.
I do think that once you and your daughter have some options after March 10, there will be people at the schools who can help you guide the quagmire of course selection.
My days as her counselor is numbered. 
@skieurope, I was helping d to register for her spring 2016, her last semester at local community college before leaving home for a bs. It’s all done now. She chose both biology and physics. Thanks for the help. I will leave her bs schedules completely between she and her bs teachers. I am ready to step down.