Paying Off Debt

So I think I’m finally in a position to start making bigger payments on my two loans… one for my car, one for college.  I can’t wait to pay these things off and POCKET this money.  I plan on taking really good care of my car and running it into the ground, hoping that it’ll last at least 15 years.  I’ve had it for about 2 years, so that’ll take me into 2021.  I’ll be 38?  Also with my school loan, if I decided to just pay the minimum each month, I’d be 37 when it’s done.  I don’t even want to calculate how much interest I’d end up paying over that whole time period.