How do I give my best to patients without burning out?

You have learned the thing that keeps good nurses from breaking: you give fully to the patient in front of you, and you let go of the ones you cannot reach right now. That is not coldness. It is the only way to keep caring for a whole career instead of a few brutal years. The temptation, when you are good at this, is to slowly start reaching for what you can't. One more room, one more task, until the presence you are proud of gets thin. Protect the way you work now. It is an achievement, not a given. Keep one honest habit: at the end of a shift, notice what you gave rather than what you missed. You are already doing the wise thing. Naming it keeps it strong, so the drowning never gets its foot in the door.