If you can't handle LoC/CC (and you obviously can't if you've collected so many debts that you struggle to manage them), it makes sense to pay off and close small ones. Because the risk you will run up those lines is worse than the sub-optimally paying off total debt.

I.e. For many, five loans with $1000 avail credit will become $5000 more debt. Better to make that four (or three, or one) loan, even if remaining loans have higher interest rate.