Chevy aveo 2008 problem strting in the mornings

Hi I have a Chevy aveo 2008 i have it for exactly 1
year every thing was fine until this past week every
morning whe i try to start the car it does start but
like it aselerates on its own.  Today i got in my car
n when I pressed gas to go like it wanted to stop
like it jerk for a moment this past weekend i didnt
use the car on monday when i wanted to use it it
wouldnt start  my brother took of my batery and
put his and tgen the car started while on he took of
his and put mibes again im using my still old 1 so i
dont knw if maybe the battery aint good and thats
what is causing all the problems..