Well, I just got back from my appointment about an hour ago. The numbness is still wearing off but overall it was incredibly easy, although it's disconcerting to have two people in your face for an hour.
In total, I had 6 fillings done involving 4 injections (I had to have an extra injection because the first shot wasn't numbing me up enough). I'm pretty proud of myself, I received all those needles without even flinching. In fact, I wouldn't even say they hurt in the slightest. I think phobia definitely makes things seem 10x worse than they are.
I have to go back in to finish up a few more things, but at least now I know not to stress so much over it. Definitely a lesson here, don't avoid the dentist for 5 years, especially if you drink a lot of soda.