While I sympathize with your viewpoint, ultimately if your manager is trying hard to improve your life at work and you just find ways to convert that into a negative and a major source of stress, I can't help but interpret that as a huge red flag that needs to be examined in detail. Either you fundamentally have a bad attitude and are going to be unhappy and stressed no matter what even when your manager is going out of their way to help you, or there's something wrong with the way some projects are going, or deadlines are unreasonable, etc.
