The first time I tried to run a mile I attempted to do it in under five minutes.
What did you feel like after finishing the mile?
I felt really tired and my body was killing me.
It's great that you wanted to push yourself to get better but it was your first time running a mile, it's both dangerous and unhealthy to push yourself too hard, especially when you first start on something. Learn what your limits are then push past them slowly and safely and you'll see real improvement.
True...
Just try to pace yourself next time in all honesty. It is great that you are able to push yourself like this though! You must have some real grit.