Intermittent Apple Pencil Pro issue for a fashion illustrator

Guy, I want to ask something. I’m a fashion illustrator and, sometimes while I’m working on my illustration my Apple Pencil stop working. I’ve connected it with the Bluetooth and the Pencil tips is also still fine but it just stop working. When i try it later it work again, it took several of minutes, sometimes hours. Pls someone help me with this. I need to turn in my homework on time.

[Re-Titled by Moderator]