Honestly the way to go is like this, buy your self Avid or even bootleg it, vegas is trash.
Lastly you can't change your settings when filming, you have to have it off record in order to change settings
Lastly, try not to be near 2.8 other wise you'll run into issues, once you get used to it you'll love the camera.
I'd also buy fixed lenses like 16mm, 28mm, 30mm, 50mm, 85mm, 105mm, 200mm