Looking at the interest, it seems like the month to month interest is dropping faster than before. The November interest was $424.03. The December interest is $422.23. This is just making not the $1000/month payment that I used to make but slightly above the required payment which is $850 (minimum is $833.61). I remember that the interest only decreased a few cents every month. After the $20,000 principal payment, the difference of interest is making some difference!
Let the next $20,000 role in!!! Can’t wait to pay this off!!! >=]