how many times a day should you water the plants?

I think my mum has an evil plan.
She's been giving me plant on every celebrating occasion.
But I'm on to her.
I reckon she's doing this to make me grow up and join the adult world.
So I'd be more nurturing and more responisble for other livings.
I now have 3 plants and I have no idea what I'm supposed to do with them.
I'm watering them 1 time a day while in my head I'm screaming in panic "I have no idea what I'm doing! For all that I know I could be killing you. I'm sorry! I'm so sorry!"