I think I might become exactly what I was afraid of. Today I maxed out a credit card so I could get my daughter's school supplies for the first grade.
What do you mean by that? What does it have to do with maxing out a credit card for your daughter?
I was always afraid that I would end up like my parents.
Wanting to spend money on your daughter and her school supplies is very kind of you and responsible. Maxing out a credit card is not responsible at all. You should probably learn how to manage your money better, or even try to get a job that pays more, so you don't end up like your parents.
I'm being careful. I'll pay it off with my next paycheck
It's good to hear that you'll be able to pay it off with your next paycheck, because keeping a balance on your credit card can be really costly with those interest rates. You should really only buy things when you know you can pay for them.