I'm upset that my dad wants to take away my new phone that he gave me
What happened to make him want to take it back?
He said it's okay for me to have a phone but if I don't start getting good grades he will take the phone away
I see why you're upset, but kids are expected to follow their parents rules. You should try and respect your father's decisions.
I can't just give up on my phone, my friends and I text each other all the time. I need my phone.
I guess that is good reason to try to improve your grades. You as a child are expected to follow the rules that are put in place by your parents.