I had early success with DBX. Very much a “happy path”. You have to scroll more to the bottom where I went into more details of what I did re: learning the motion.
The big TL;DR is that people try to do a DBX motion. You should be trying to play mostly flat and trust that the motion you are using (assuming proper grip/angles/joint motion etc) are doing their job. It mainly feels like moving the wrist back and forth when you do it correctly. Maybe some moderate rotation or some helper motion (grip movement) if there are string skips.
Good luck!