How do I manage very sick patients on my own?

You can follow a plan, but managing acutely ill patients on your own overwhelms you. That is the hardest step in the work, moving from carrying out decisions to making them, alone, when someone is very sick. The overwhelm is not a sign you are not ready. It is the honest weight of responsibility landing on you for the first time. No one who does this well actually stands fully alone, and you should not either. The skill is not knowing everything; it is knowing what you know, knowing what you do not, and calling for help without shame before things go bad. Asking early is a mark of good judgment, not weakness. The dangerous ones are those who do not ask. So set your threshold now, while it is calm: decide the signs that mean you reach out for help, and promise yourself you will, without hesitation, when you see them. That plan takes the paralysis out of the moment. You are not meant to carry the sickest patients entirely alone. You are meant to carry them well, and that includes knowing when to bring others in.