It seems to me that many folks used do things the other way around. I spent many years in 'original' bands in the mid '80s and '90s, touting around UK pubs, clubs and venues, inviting record company A+R folks to gigs, hiring vans, doing mini-tours that just about broke even, playing show-cases and sending of demo tapes. Many times the stages were shared with the same bands or individuals all in the same position and chasing the same opportunities, and many times the "faces" showing up were the same. There were lots of "close but no cigar" moments but never any "big breaks" that stuck. But I loved every minute and have no (few?) regrets. So now it is pubs, bars and covers all the way. And purely for the pleasure of playing live to an appreciative audience that is already familiar with most of the music and for owners that will cover costs and keep us fed. I've done new arrangements for a few of the originals that I have rights to, but that was just before the pandemic and there has been no opportunity yet to try those out with an actual living audience.
So my original “CV” was somewhat truncated
I’m 57. In my early twenties I had a run at originals (as a singer rather than a bass player - I was “promoted” when our first singer left after a single rehearsal. I couldn’t sing & play bass at the same time and the guitarist “knew a guy”). We got to support a couple of name bands “on their way back down” but never got anywhere and it only lasted a year.
I quit because I had a spot of unplanned parenthood aged 24 prompting me to get “a proper career”. That was the last time I even touched an instrument for 16 years.
I worked hard & ended up as a (extremely unhappy) board director of the UK’s biggest ad agency.
Aged 40 I quit that and embarked on a second career as comedy performer.
That went really well too (National tours, three awards, loads of radio, tiny bit of telly) then the pandemic struck so I picked up the bass again, took formal lessons twice a week over Zoom from a pro and practiced about 4hrs a day. Yes, I’ve given myself shoulder issues but I got good, fast
During the gaps between lockdowns I joined three different covers bands and started giggling the second thing opened up again.
In March this year I formed an originals band with three lovely and really talented young people (average age 26 - I look very young for my age and they all thought I was late 30’s/early 40’s. Though my guitarist Googled me on day one and Wikipedia outed me

).
I’ve brought all the knowledge that 15 years of full time touring has taught me and poured it into this project.
By August, it was going so well & we’d become such good, supportive friends that I dropped all my other musical projects to focus completely on this.
We go into the studio to record our debut EP in 14 days time.
I haunt this forum looking for pearls of wisdom that will help my band