I highly recommend a sim like Velicidrone.
FPV is alot harder than it looks (at least for me it is). I gave up trying to learn it.
However, my son wanted one for Christmas so we got him one. I made him learn on Velocidrone for a few weeks before I let him fly the real thing.
First time out with the real thing and he was zipping around and was fairly confident and his confidence is getting higher each time we go out.
So, Velocidrone. That is all.