Do you have any homies to ski with? Skiing with someone better than you helps push your limits.
Trampoline is a huge help to assist with the feeling of being in the air.
Commitment is key to rails, you cant ski up to a rail and not have your mind made up of what you are going to do, you always talk yourself out of it. Stick to the plan and stay committed.
Plan on falling, wear some extra gear to help protect your body from the impacts(Padded under armor, knee braces, etc.)
Most of all, have fun. Main reason we are all out there doing what we enjoy, its fun!
Good luck homie and welcome to NS.