The thing that worked for me: Don't try to be focused on coding efficiency when learning Helix. I've used Vim for well over a decade and I'm very fluent in it. But when I decided to learn to use Helix, I shifted my mindset to a Notepad.exe-like experience. A lot more scrolling, a lot less jumping. And then I started prioritizing the most needed shortcuts one by one. Helix also has a nice command search that is available via "space ?" that helped me find the commands and key combos that I wanted to learn.

I also went through the :tutor several times. Unfortunately, it doesn't cover typical coding activities, but it does a good job at explaining the editing model.

The features of Helix are also a lot more discoverable than in Vim, because you get these nice menus when you press one of <space> g m v