Is 14 a reasonable amount of APs to have taken?
it depends on your school and how many it offers! but that sounds like a lot i am taking the same amount!
No, 6-8 is a reasonable amount.
After 6-8 the law of diminishing returns applies wrt college admissions. You don’t want to look like you focused on quantity rather than crafting a schedule that makes sense and you should never replace a core class by an unrelated/elective AP.
So, basically, have four or five from AP Lang, AP lit, AP calc, AP foreign language, AP Bio, AP chemistry, AP physics 1 or 2 or C, apush, AP world, AP Euro. Then add subjects you’re interested in.
Use your time wisely as the difference will often be made through ECs and essays.
I took 12. I think it’s a reasonable amount! It really depends on how many APs are offered at your school though. 
@musicmeister22 How many did you have to take each year to get 12?
@fretnot 1 (freshman), 2 (sophomore), 5 (junior), 4 (senior) 