Its the 14th century and you’ve had no time to prepare, after you’re done reading this post you are snapped. What do you do?
I would warn the Native Americans about the Europeans
Europeans would show up and my Native American homies would be armed with cartridge rifles, six shooters and a crank rotary machine gun.
I would try for better, but I think there just wouldn’t be the time for fine tooling more advanced fire arms would require. Even getting all that going before I croak is going to take a lot of ambition.
Also assuming they don’t think I am some evil spirit that they quickly kill when I demand industrial metal facilities be constructed.
Oh, they would probably also have penicillin before the white man, so that would be a major advantage.
Not native, just 1st to migrate. 1st Americans or Amerindians.
Congratulations, you just brought diseases to the new world.