So a couple days ago my 2006 G35 Coupe AT died on me. It took a couple turns of the key to start before work, and after work it wouldn't turn on. I tried to jump it, no luck. I used my OBD Sensor and it only threw code P0462, which is a common thing on here clearly. I don't think that would make my car die on me, but I did read somewhere it could cause a no start. But anyway, my service engine light, oil light, and battery light are all on, which is what makes me think my battery is shot. Could I just be dumb and need a new battery? Or is it a starter or alternator? Need help, thanks!

Your terminology is incredibly vague, couple turns, cause a no start.

If the engine will NOT CRANK when you turn the key to START then you need to charge the battery and troubleshoot the starting system.

If the engine will crank but WILL NOT START then you need to start by adding 1 gallon of fresh gas, most people just run out of gas and the car dies, don't rely on your fuel gauge since you obviously have problems with that system and a P0462 code.

It doesn't crank, it sounds more like a grinding when I try to start it. I put two gallons of gas in it because I thought there as a shot i was out of gas, it still didn't turn on. I already tried jumping it too, which didn't work. It would crank once or twice while jumping it, but after trying it would just stop cranking.

Post a video, that would help a lot. Put it on youtube and post the link here and it will automatically embed the video.

I'm willing to bet the starter is fried

I love the taste of fried starters.