Snow ball method’s great when you’re really up shit’s creek and aren’t going to be done paying everything off anytime soon anyway.

By paying off the smaller loans first, your total minimum monthly payment is reduced quicker, leaving you better off psychologically because you finally have money to spend on food, but also you can then use the extra money every month to pay off the debts with worse interest rates.

Personally I wouldn’t fully adhere his snowball method OR the optimal “high interest first” strategy. I’d first identify the low hanging fruit and then look at the rest as a tradeoff between “how quickly could I pay this off” vs “how much would not having this payment anymore improve my life” vs “how much is this going to fuck me in the ass with interest if I don’t pay it off ahead of schedule”.