What would one need to know, if they were stranded in a jungle?

Say you got shipwrecked, and ended up on an island that has nothing but jungle on it. You have nothing at all, except maybe floating ship parts. How could you survive, if you knew nothing about jungles?

What would you have to watch out for? There are bugs, snakes, leaves that can cut your skin, and since jungles are so humid, the bleeding would last longer than usual…

What would you eat, if you knew nothing about jungle vegetation? Could you hunt? Hunting in a jungle must be completely different than hunting in Western forests. What would you drink? Can’t drink sea water.
I heard you can eat moss that grows on trees and rocks…

What animals would you have to watch out for? Snakes, alligators, tigers…how to deal with them? How to not get in their way?

How would you build a shelter?

Are stories true? If you were stranded in a jungle, might you come across indigenous people that have been living there for centuries? Would they welcome and help you, or would they be hostile? Can parrots live for a 1000 years, telling you where pirate treasure might be buried?

As far as I know, there are also different types of jungles, too…what would one need to know, if they found themselves in the jungle, and needed to survive until help came?

Note; I added ’‘jungles’’ in the topics, but it’s not showing up. :/