Two things come into play here. First of all, define "living". You can "live" in your van on nothing, no utilities in your name, pay as you go cell phone, online access at the library only, sponging off a girlfriend or living with your parents forever, looking for people who will invite you to dinner once a week so you can have something other than cold food you make in your van.... or you can "live" in a home you own, drive a nice car, keep your gas and electric turned on.... just be responsible in general.

Second, does your area have enough places to play to keep you busy 22 dates per month?

Of course you CAN do it if you hustle and work hard. Sadly I know too many who play for $75 3 times a month and the rest of the month they drink or snort it all away. I also know many who are quite successful, though in a few cases I wonder how they'd do it without the spouse in the picture. I know of one single mom who COULD do it but she chooses to keep her daytime career in tandem with her music, but she works a lot and could make it happen if she only played music. She'd join one more band to do it, but she'd be fine.

(Edit to add: I know all these things to be true because I have done most of them....!!)