Hi Jim, I’m not sure if you have taken the fundamentals of animation yet but I think it will really help you understand the graph editor and how animation data works. (well the basics anyway)
You did figure out that the order of the curves don’t matter in the graph editor though.
One handy way to change the keyframe interpolation is in with the T key.
If you want to change the vector handle type, that is the V key.
If you haven’t taken the course, then I highly recommend that you do. And if you get stuck or have any more questions, let me know. (But spikey will probably jump in and save the day first because he’s a champion like that haha)