Can I Get Into College? No Extra Curriculars?

As a senior, the application process has already been initiated but I am lost and don’t know where to start. Quite frankly I don’t feel ready for college. I am still 16 and most of my peers are beginning their Junior years.
Throughout high school I have maintained decent academics but external pressures have kept me from being involved in the community. Not to sound like a sob story, but I had to deal with alot of crap. My parents divorced in 9th grade; and as a result I was transplanted half way across the country to Texas. With no friends for the majority of my freshman year I kept mostly to my self. As the year progressed I became good friends with two people who would later change for the worst. During sophomore year my two best friends turned to drugs and alcohol and I was caught in the middle of it. Before you judge me, I never smoked or did any drug, but I was involved heavily with people that did. My best friend was busted for selling extascy and had to spend two years in an alternative school and the other just dropped of the face of the earth. I exerted my best effort to help them but nothing I did ended up working. Professional intervention was the only thing that could help. That aside, I also spent that year living under the wing of an abusive boyfriend who espoused my mom. Fast forward to junior year and I started to branch out and become more sociable. In October I was diagnosed with mono and spent 19 days out of school, jeopardizing my grades and was on the verge of repeating junior year due to attendance. Once I got better it was too late as clubs where established and I was extremely tired following school. Now that I am better, I intend to make the best of my senior year. I plan to join BPA and another volunteering club to help boost my extra curriculars for college, but I fear it is to late. Applications are already starting and I am in between a rock and a hard place.
If you were in my situation, what would you do? I can give you a list of colleges I want to apply to and my “stats” for analysis. Do I have any chance of attending these universities or is my future ruined?
Texas Resident
2000 SAT Score
32 ACT score
3.8 out of 4.0 GPA
6 AP classes including Government, AP US, AP World, Ap Micro, Ap Spanish 4, and AP English Language. (5 on AP world, 4 on ap us, 3 on Spanish language,and 4 on Ap English test)
Top 20% of my class of 700 students
As far as extra curricular go I have:
Been webmaster of school website during junior year
Member of Spanish club
Volunteered at the library after school 4 hours a week
Owned my own business as a web master that developed and hosted websites for local clients
Future member of Business Professionals of America
Future member of Graphic Design and Art Club
What can I do to get involved, andup my chances of going to a good university?
I’d love to attend :
1.Ut Austin
2. Texas A&m
3. UNC Chapel Hill
4. University of Chicago (bit of a stretch but I get letters from them weekly)
5.NYU or Columbia.