No prob, spike. You've been there for me hundreds of times!

 

You really could be dangerous. Stop messing with it, don't start your engine or drive the vehicle till you rad the manual and lay under your truck till you figure out what is what, and better yet where everything is located.
Now it is good you want to try and do your own work, that is great, but look at whatever you are doing and at least know what is the engine, t/case, tranny or diffs.
That being said, if you want some help, send me your number and I'll call you and walk you thru what you are wanting to do. Also need to know how many miles on the engine?

 

It is a plug on the transmission intermediate plate per RAVE 44.17.20. Intermediate plate removal instructions step 4: Remove 2 M20 plugs from intermediate plate, remove and discard sealing washers.

You lost transmission fluid. Definitely check fluid level before driving anywhere.