Learning switch is all about practice. As people said dial back the terrain and just do it. It will come with practice.
I was riding switch my 3rd and 4th days on a board (not well of course) and I have always made a point of riding lots of switch to try and balance the use of my body and my brain.
I would recommend to any beginner to start working on switch as soon as they are comfortable riding greens.
I don't like the idea of building up too much muscle/nervous system imbalance.
These days its rare I spend an entire run facing one way and love to ride switch in powder and on tree runs.
I have a swallow tail board that floats really well, but I just don't like the idea of being stuck going one way all day.