I’m going to be completely honest and also constructive here.
You have a good chance of getting in, not a great one (there really isn’t such a thing as a great chance for any OOS student, save for sports commitments.) The thing with college applications and decisions, as you’ll soon find out, is that there are many confounding variables that change the outcome of a college decision that you, as a student, do not control.
So the advice I would give you is this: continue to focus on building your resume as a strong student both GPA wise and test score wise. Focus as much as you can on test scores because as much as we as students don’t want them to matter, for one reason or another they definitely do and can actually be used for consideration even after initial admissions are over. Take the SAT II’s and do your best on them (if it turns out you don’t want to submit them-- you don’t have to.) But why not potentially strengthen your application for a minimal marginal cost? Try and stand out as much as you can, whether that means increasing your involvement with a certain club, getting a new job, etc. And remember this: even if your dreams of getting into UVA do not work out, there are going to be plenty of great, feasible options for you. Who knows, it might even work out better for you at another college academically, financially, or otherwise. The picture won’t be clear for you until all of your decisions are in.
Just as a side note: I cannot confirm statistically that this is true, but I have heard through the grapevine that acceptance odds change based on when you submit your application. Even if as a whole, the odds seem to be about even nationally for early and regular submission of apps, that does not account for potential quotas/limits colleges have on accepting a certain number of applicants per school, or state, or region, etc. Sometimes, it seems as though a student’s greatest competition for admission can sometimes be a fellow classmate of theirs. In conclusion: apply early if you can. Get all of your application materials ready and be extremely aware of deadlines. Even if it turns out that there aren’t technically “quotas” based on High School, the additional exposure from early submission literally can only help.