I have had a mountain of guitars.....well most of them was a waste of money and way too much wasted time.
Some I learned alot from, others where just a waste of time and focus...
I always got caught up in ifs and maybes...or could be.....
Sometimes I wish that I had focused more on playing than gear...
But it is a double edged deal, on one side you learn alot from mistakes and such, on the other hand I took out alot of time that I could used on playing instead...maybe it even prevented me from playing in some setups, where I could have had a job...but because I wasted it on gear, the time that it is, I never got those gigs....
On the hindsight I should have honed my sightreading and such...yeah I used to read notes when I was a kid....now....I can't read much anymore....
Now I know how to fix guitars and such.....but I rather wish that I was better at playing instead.
It was a lack of focus due to way too many guitars, projects and such....
My old mate I grew up with, plays lots of gigs now....
And I make pedals and guitars

Hah oh well such is life, I long since stopped regretting it anyways...no use for that, I moved on.
I still play but it is far from what I used to do.