Thanks for sharing your experience, roachboy. Very helpful. The little bits I can add: I looked at a lot of bio information and copied the best parts for my own. Not the actual facts, but the phrasing.
Adjectives are important!! Don't use anything ambiguous. The big one that people misuse is "unique." Stay away from that one... of
course you're unique. Saying it is treating the reader like an idiot.
My favourite resource for stuff like this is Beyond Talent, my Angela Myles Beeching, who was career counselor for Boston's New England Conservatory, a top school for jazz and classical (the bottom feeders of the gig-getters' ladder). I just found most of it
here.
Good luck...well... actually I don't believe there's really any luck involved. Learn to write a decent bio for yourself and remove one obstacle to getting booked.