Christ Jesus, 500 a month? I might not even pay that much and I literally drive the work day (Amazon flex, Uber eats, etc) for my job. Do you know how to drive gas efficient? If your RPM’s never pass 2K and you cruise to stop lights etc you can still drive a decent speed and get much better gas mileage. Stop idling at long lights - if you’re going to wait more than 10 seconds, shut the car off. Perhaps invest in some fuel injector cleaner as a cheap alternative to a proper tune up.
unless you drive for a living you should definitely get that way down, (unless you live in california AND commute 3 hours a day or something, in which case you have bigger problems)