Just some thoughts from an old hack who played guitar poorly for like 5 years before switching to bass.
It's confusing at first when trying to play a chord because you don't have the range of motion you're used to the a free wrist. Back when I learned I was taught to put the 'knife end' of my hand all the way up against the bridge (make a hand like you're doing a karate chop) and strum from there. Down will be easier than up. Another thing to keep in mind is that all our arms/hands and other appendages are different sizes and what may work for others may not work for you, so try a few styles, see which works best for you and also sounds like how you want, and do that.
And some things are okay to shortcut. I always had trouble on power chords on the bottom three strings so I just kept the root and next string snd skipped the third. No ones really going to notice.