Colleges... do i sound like a good applicant?

a lot of people, like teachers and counslers, have told me that junior year is the most important year of all... especially if you screwed up freshman year and soph. year (i screwed up first semester... this semester I has 3 A's... 2 B's and 1 C... the B's and C's I'm trying to bring up to the next letter grade)... yeah so i really want junior year to shine since colleges look at that the most... they look at all3 yrs and the cles you are taking as a senior but they especially look at senior year.... I want to take AP Physc, AP Physics B. Honors US HISTORY, Advanced Algebra and Trig, Honors Latin 2, Honors Junior English... I want to join Key CLUB, SADD Club, DEBATE cLUB, and SGA (student government ociation).... do you think if I try to get all A's in all my cles, and stay active in all the clubs, do you think colleges will be impressed with me and what I have to offer... especially UGA, or Emory University, or even Oxford College at EMORY uNIVERSITY?