I try not to, but it's clear that I do more to help one of my children than the other.
Well, that's not uncommon. Why do you help one of your children more?
I just think they need the help. My other child is doing fine.
Parent's are expected to love their children equally, but it's okay to give more attention to the child that needs it most. Just make sure you don't neglect the other to do so. If you do, then your relationship may suffer with the neglected child.
Good point. I think I'll try that.
Maybe you could try setting aside a certain amount of time with each of them, according to how much help they need. That way you know that you aren't being unfair.