I'd ignore calls to pay off the biggest debt first. It sounds good but it takes too long. You need to see results for encouragement. Say you have 4 (probably more but 4 for examples) debts, smallest to largest A, B, C, and D. The minimum monthly payments are A $47, B $81, C $108 and D$155.
You cancel cable TV, smartphone, satellite radio, newspapers, stop eating out and all the other things you learn in TTMM. That frees up over $300 a month and you start paying $347 a month on A instead of $47. It's quickly paid off and now you have $347 a month extra to add to B for $428 a month. In a few months it's paid off and within a year you've eliminated half of them. Now you have $536 a month for C, not $108. And on it goes. If you had started with D you'd still be paying on it and nothing would have changed except your austerity measures with no victories to show for it. Work from the bottom up. Winning repeatedly and rapidly is much more desirable and rewarding.