bad math

I got myself into trouble again. I got paid yesterday. The first thing I did was go to the capital one website and pay that bill. It was just over $200. Then, I went to the B of A website and paid other bills. I used my available balance to decide how many bills to pay. I somehow glossed over the fact that my available balance would be lower once the capital one money came out. (I usually pay the capital one bill from the bank website, instead of the other way around.) So now, there is not enough money to cover my car payment. It's too late to cancel the payment without a fee. On top of that I didn't get a Pima paycheck. The car payment comes out on the 23rd. I put $400 in savings to make sure I have enough for the automatic overdraft of $400 by CCCS on January 3rd. So I'm in the negative.