I pulled out my dads compressor and filled the tires and reset the gauges again so that's good. But guess what? When I started the car to move it closer to the garage, it stalled. So I did my giving gas until the engine caught the idle and then it ran perfectly for over a half hour before I shut it off. The mass airflow sensor apparently works, but there's still something else that needs to be fixed.
Since the idle was good, I decided to drive the car to work today. I still had to do the giving gas until the idle caught on and then I tested some rough high speed acceleration up and down my driveway to test it a bit. Got to work with no trouble whatsoever. After work, the car started right up perfectly even with the engine temp halfway between cold and normal. I drove the car all over the place for about an hour at high speeds, low speeds, sudden stops, high revs, low revs, etc. No problems. So I guess I can drive the car now but it still has some issue with getting the engine to reach an idle sometimes. I'm kinda thinking ignition coils so I'm looking into that.