I got fired from my first ever band by the blow arse guitarist who basically told me i was useless.

I had just started out on the drum kit and somehow managed to bluff through the audition to get into the band. That was my first lesson in the rock circus. That kick in the guts only encouraged me to "show him better". A few weeks later that band folded because they couldn't find another drummer. The vocalist from that band came to me and gave me a second chance as he liked what i did but had no say in the matter(something i will never forget)

, and we formed a very sucessful band (and i improved). The guitarist had no one to play with (as talented as he was).
Over many years i have had different musicians like guitarist point some things out to me and as they were both encouraging and constructive with their comments and so i took it all on board. Anything negative, i would just block my ears.
Unfair or demeaning critising of
any muso can only come from low lifes.