I think, as has already been said, if you want to play every night you need to join other bands, dep etc and basically become a working musician.
For the majority of folk I know, we couldn't earn enough money from gigging to compare with a weekly wage from other work.
I gig most weekends in an originals band and if I put that extra time (travel, fuel, hanging about, playing, drinking) into my regular job I'd be minted
personally I'm concentrating on trying to write a Xmas number one, that'll set me up for life....