I think you'll be fine. It'll definitely be a whole lot easier than trying to learn how to ski and learn how to ski park at the same time. You know how to ski, are probably very coordinated, and I'm assuming you're very comfortable at moderately fast speeds. So it should be pretty easy for you to get into!
Boxes are your friends when you're learning. Try to learn natural and unnatural grinds at the same time. I never did and sliding unnatural is such a pain now. I wish I would have tried to learn it sooner. If you can't ski switch you should definitely work on that too. It's not very hard to learn- remember to look around your shoulder, don't just turn your head because that puts you in an awkward position. Stagger your skis so that your hips are open. When I'm turning to my left(while facing uphill) it's like turning to a downhill skiers right. So a left turn I look over my right shoulder and stagger my skis so that my right ski is farther downhill than my left. And then vice versa for a right turn. Take a few runs on an easy run and you'll have it down pretty well!
For jumps, shin pressure is super important. It helps you to stay balanced and in control. Definitely helps with toe/shin bang and landing backseat. You could try some easy grabs while straight airing. Saftey, critical, tail, and mute are pretty basic. Try some shiftys. Both way 180s and 360s are a good start.
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