i just started to work at new job and feel helpless HeLP!!?

i just started to work at this new job at a gym and i cant seem to learn all the things i need to do with the computer and i dont want to crew it up . Its my third day and everyone helps but i feel like they get anoyed by i also feel useless cuz i have to call them like 5 times in one day i know its just my second day but i dont know what to do i just dont want to leave any advice ?.