advice any one

hey I'm currently living in AZ and I went back to school for m.a. I got so he with my 1st course only to find out i wasn't going to receive my financial aid. My counselor told me.i needed my tax returns, which I turned in, and my husband's which I didn't know I needed since we weren't married at the time(the years they were asking for). Come to find out hubby didn't file taxes for that year so i had to do it for him and wait for it to come back the transcript i mean. Long story short i didnt get to finish. Well now almost a year later the school is taking me to court for the 4 grand that i owe. I would like to go back to school eventually but I'm contemplating or whether or not i should file for divorce first. My husband is bad with his taxes etc and I kinda feel like he's holding me back from what I'm trying to achieve, granted he's very supportive of me going to school and everything. would I be wrong to divorce him for that short period of time. Any advice would do. so far everything I do i need his credit or something from.him to get things that I want to achieve done.