Sunday I didn't use my car. At 9pm i moved it across the street because the street sweeper was passing on Monday. Monday morning at 830am my car doesn't start. I remembered that I haven't checked to make sure I have coolant in a while. I had zero but my car never signaled that it was overheating. At 430pm my friend gave me a jump start. I let it run for 15 minutes. Turned it off and back on 15 minutes later and it worked fine. by this time I didn't have to go anywhere so I just left it. today at 830am it wouldn't start again. Is it that I damaged something because I didn't have any coolant or is it my battery.
What kind of car is this?
Coolant has nothing to do with your cars ability to start. Most cars can be started with the water pump not even running (not for long mind you, as it will overheat).
Is it turning over? Making any sounds at all? Can you get us a video?
You said you needed a jump to start once, why? Did you leave your lights on or did your battery just have no juice? I'd imagine your battery needs replacing.