Here's some tips that helped me learn park basics.
First off: You're gonna fall. Alot. It's part of the game. Just take it in stride and laugh it off. Also don't get caught up in thinking that there's a certain order for learning tricks, try to do what you can envision yourself doing. Try to visualize it in your head.
-When learning rails: Detune underfoot, and start on a low, small one. Round, flat... doesn't matter. Hop on back foot first, then set the front foot. It feels weird at first but it's the proper way. Front foot on first leaves your back ski vulnerable to clipping the rail which will screw you royally! Once you got that down, STOP LOOKING AT YOUR FEET! Focus on the end of the rail, or straight past it. Trust that you will slide all the way thru. If you start on a small rail, there isn't any real risk of injury, so just keep sending it. Also, its ok to start learning with the straddle stance (rail aimed in between legs) as opposed to urban on, or "from the side".
-When learning jumps: always tilt your noses up and land tails first. Think of your tails as landing gear on a plane.
-When learning spins: Remember that your body will always follow where your eyes are. So turn your head like an owl, looking into the rotation and you'll spot the landing before your lower half even gets there.
-Helmet every time. Park skiing happens fast, and so do the accidents. So get used to wearing one now, that way when you're trying bigger tricks one day, it's not uncomfortable to you. My Giro Ledge saved my life this year. I hit a 30ft gap and hit a tree before I could even slow down. I hit so hard I saw dead relatives lol... Broke a rib, bruised my entire side but no concussion. So helmet is a must.
Feel free to DM me with any questions regarding Tips, Gear, whatever. Best of luck homie