My bill are going to have to take a back seat as I want to go back to university.
Your bills are important, why would you do that?
The bills are taking up all my money and I feel it's a waste. I really want to go back to university.
You should pay your bills even if you think it is a waste of money. It's your responsibility and you signed a contract to pay for them.
I can't afford that.
Financial limitations are difficult, but your bills have to be paid and you made an obligation. Have you looked into grants or scholarships for going back to university? Perhaps you could go part-time?