I explain that I'm working on X, which was conveyed as high priority. And how shall I prioritize this new one? Many times, it's mentioned so you know about it;

I explain that I'm working on X, which was conveyed as high priority. And how shall I prioritize this new one? Many times, it's mentioned so you know about it; not to switch tasks to it. It's a delicate balance... And it sucks esp if 'everything' is high priority.