sorry for the soft approach, but I don't think the answer is "don't waste time", I think the answer is "be a bit more friendly to yourself". I understand your

sorry for the soft approach, but I don't think the answer is "don't waste time", I think the answer is "be a bit more friendly to yourself". I understand your goal is to be as productive as you can, but I don't feel talking yourself into anxiety and burn-out will get you what you want. As you very rightly say, a human is not a machine.