This just sounds like you ended up with a bad manager, rather than a failure inherent to all management. A good manager would have recognised that you're pretty

This just sounds like you ended up with a bad manager, rather than a failure inherent to all management. A good manager would have recognised that you're pretty much capable of knowing where to focus your effort, and generally get that call right - given that they can be more or less hands off, but provide you with a screen from things that really shouldn't be getting near you in the first place, and a route to push things up the chain when needed without having to shepard them along.