Even a short vacation would help with two big things. First, physically resting and getting outdoors in the summer months can certainly just help you rebalance

Even a short vacation would help with two big things. First, physically resting and getting outdoors in the summer months can certainly just help you rebalance enough to make good decisions. You might realize that very short-term problems are weighing more heavily on you than you realize. Second, it's a test of how indispensable you are at work, and forces other people to try to do things before asking you. You'll learn which things you need to make sure to train them to take over when you leave, and they'll remember the answers and approaches better if they have to figure them out themselves. I guess it's possible that two weeks would cause irreparable damage... I have no idea what you should do in that case. I can't say I'd stick with it in that scenario, that's a horrible trap to get stuck in especially if you can't imagine it getting better.