We'll miss ya not being around so much Chris but I agree with your reasons 100% my friend!
A long time ago, in a galaxy far far away... your Reason 2 described me.. to a "T". If youve been good with your schoolwork, you'll be fine (as long as you dont do too much #3 ie socializing). Keep at it.
You should get out and socialize with your peers, sports, clubs etc are good ways of doing this. I was a geek, so I had computer club (lol 3 kids on one apple ][), scifi club, and honor society. Wanted to be a football player, but they wanted me to practice before school even started, this cut into my summer working months (my only real 'personal' income) which paid my cars insurance and gas.. those things mom & dad refused to pay.
I didnt end up having too many opportunities for college, but was lucky enough to supplement my computer interest and get work in the field. Even with things going well for me now, I wish i'd had better opportunities for college myself. Keep the dream... go for it!
Best of luck with school, stick with it.
Stay cool