Would suggest working on strength and fitness. Lose any extra pounds your carrying, that carbon bike is a bit pointless with the extra tyre around your stomach. You should be able to deadlift at least 1.5x your body weight, as a general rule for sport. as well as kettle bell work, and general core strength improvement.
Work on cornering, mine has improved no end in the last few weeks now I’ve been consciously working on it. Ride every downhill section as if your racing, and make sure you do the ‘enduro’ lines, can save seconds per stage by taking shorter lines, rather than following the normal track. Also, something I was told recently, which makes a lot of sense is; tyres grip a lot better when not braking, so try and stay off the brakes where possible. And hit some steep loamy trails.
I would say chainless runs, if you can be arsed, help massively, i snapped my chain at the end of a ride a few weeks ago, rode the last trail chainless, and was so much quicker, as I knew I couldn’t pedal out of corners, it’s amazing how your sense of speed changes when gravity is your only method to achieve it.
And finally goggles with a normal helmet, you can’t ride enduro without it. With the full face rule coming in next year, something else may become fashionable, so keep an eye out. I’ve heard a full face with double monacle is coming in.