I have dyslexia which is pretty severe when it comes to numbers. The number 8 has always been my favorite because it always looks the same. Even with numbers that twist and swim, I learned to balance a checkbook and pay bills. I have to cover the numbers with my finger so I only see one number at time. It is relatively slow and laborious, but do-able. Maybe you could try covering each line or putting a ruler under the line you are reading.

Nowadays you don't even have to write anything down for your checking account. Look online: the bank does your checkbook for you.