justbaseball has given you some excellent points to consider.
I would add to his comments - you've mentioned some of the most academcially demanding schools, schools that would require (on the old scale) an SAT of about 1350-1400 and excellent grades for admission.
You've also listed some D-3's (Amherst and Emory), which have different recruiting and scholarship rules and guidelines than D-1's and then the Ivies are a whole 'nother game altogether.
You've also projected yourself going from 75mph to 90 in pitching velocity. What grade are you in now? (and it's the rare talent that reaches 90). Also, a the d-1 level they're typically looking for a max 7.0 60 unless you're a catcher. So projecting all this isn't easy.
As suggested above, get to some camps/showcases as you are able and definitely during the summer before your senior year. In/by the end of your junior year you'll see where you stand baseballwise, gradewise and take the SAT by then. With all that you'll have a better grip on where your best opporunities will be, along with considering the other factors mentioned above like school location, size, etc.
You also mentioned your interest in various "Cal" schools. That could mean most anything as you've got D-1, 2 and 3 schools here, public (state college and UC systems) and private, large and small etc. for that matter, northern and southern California are worlds apart.
Anyway, good luck in your search.
