“I want to ramp some shots up to around 600% normal speed and quickly back down to 20%. This will give me that sudded speed up and slow down effect.”
Time remapping does this very fine in AE as well as in premiere. Very great feature i can tell.
Unfortunatly i can’t go into the click-here-and-there and other the ABCs of AE. I am afraid you will need some readings in AE help to get used to some basics.
Generally speaking, AE is is not an editing package, thats what premiere does. AE is a good companion for the editing packages tho. Both work together to achieve larger ideas. Each one is specialized in its tasks even tho they sometimes cover same features.
I am not an expert but i can tell usually in AE you work with short pieces of clips where you apply effects, add non real-life elements, composite, tweak color, bring changes on entire clip or part of it, or even portion of frames. Then back in editing packages you join these small clips together to create a longer movie or sequences and do the timing.
Some 30 secondes TV ads or video spots can be done entirely with AE.
Or you can get the idea of the workflow quicklier if you follow CAREFULLY and apply some turorials like there: https://www.xplorerstudio.com/tutorials.html
There was this good book by Stan Carver “AE and premiere studio secrets”. Date from back to AE 5.5, but the basic worklow can be learned efficiently if you read and practice what this book teaches. It covers differentes cases and situations some pro actually do use AE to achieve amazing effects.
Usually to understand a software’s basics you have advantage reading old books on the first versions.
Good luck