Chiming in to say that on my asus laptop, the start up button is f12! Press as soon as the first logo appears on the screen. It might take a few times to get the timing right, if you miss it just restart the computer.
It should take you to a menu that looks like a classic hacker screen (blue screen with pixilated text, no clickable UI). Then go to the boot options and select the USB.
Honestly 100% unemployed becuase we have a good universal income system or something would be great. But sadly it looks like we’re in a different timeline :(