I definitely watched a ton of youtube videos when I was getting started.
This guy has a lot of good ones, though they tend to move a bit slowly for my tastes.
This book tends to be the most-frequently recommended, but I found
this one to be more immediately accessible.
The first big hurdle for me was understanding that this is not a strumming instrument. You play groups of 1-3 strings, and some of the most common positions (commonly called "grips") have you skipping a string or two, which is an adjustment (on top of wearing thumb and finger picks).
Once you start to associate certain combinations of pedals/levers with what they accomplish musically, you'll start to have little "aha" moments constantly. The easiest one is your A&B pedals. Pressed together, you're basically turning your open groupings from a I chord to a IV chord (or a V to a I, depending on context). Now, if you keep the B pedal pressed and roll the side of your foot on and off that A pedal - that's your classic steel sound. You could cut an entire album with just that.
As with learning guitar, every pedal/lever combination is just a matter of "how do I make this sound I want" and then committing that to muscle memory.
A 3x5 single neck E9 is a great setup. I am absolutely in the market to upgrade from my Carter Starter, so if you wanna clean out your closet...
