At this point in my career I've realized that if you're told your performance "needs improvement" and someone isn't assigned to mentor you and help you perform

At this point in my career I've realized that if you're told your performance "needs improvement" and someone isn't assigned to mentor you and help you perform better then you should start looking for a new job. Not apprenticing you is like saying "you suck, fix yourself". No. That's not the culture you want to be a part of. I've been that guy. There have been times someone helped me and I grew and it was awesome. There have also been times I wasn't helped and there was a ton of unnecessary thrashing. It's just bad leadership. My guess is the work environment is maybe a little toxic in other ways too.