Courage and fear are two opposing emotions that play the "devil and angel" roles in your sub-conscience as you mentally prep for your ski trip, especially if you are not the an experienced skier. The battle of which state of mind you lie with can set the stage for the whole vacation.
What you need to realize that these polarities are interdependent. You only need to balance things out, not necessarily completely giving into one mindset or the other. At the very least, both courage and fear is a helpful compass. Having these two emotional states can be used to work together for your benefit and ensures that every endeavor you make is more enjoyable.
Dare to Push Your Limits
Sure it sounds cliché or from an anonymous online quote but it rings true under the circumstances. There is a big difference between doing something out of your comfort zone and doing something that is simply dangerous. Keep your personal safety and the safety of those around you as the main priority. With that being said, don't use it as an excuse not to get out of that comfort zone. After some time developing your skiing abilities, try more challenging trails or other mountains.
Can Only Be Scared of Realistic Factors
Fear itself can be paralyzing if you allow it to be. There are certain things that truly warrant reasonable apprehension, and others are just a mental roadblock. Don't overthink a situation to come up with "the worst possible situation" you could face. For example, there is always the possibility of getting lost on a "less traveled" trail with your buddies. But if you are not at the skill level to face that challenge the responsible decision would be to not attempt it anyway, thus it is not a realistic fear for you. It's better to be safe than sorry.
Dare to Tame Inner Audacity
Ski trips are often done in large groups with family and friends. In some cases this can lead to the desire to impress who your with or actual peer pressure. Just because your friend can do a nifty board-grab off the ramp doesn't mean you have to try it too. Or one can only assume a significant other will feel the same about you whether or not you attempted the most dangerous trail. Then again, he/she might not feel the same love and affection if your arm is in a sling after such an attempt to impress the group.
All in all, keep 3 things in mind: get out of your comfort zone, it's ok to be scared at times and showing off is not the same as being courageous... Don't let courage or fear completely take over your mental state during a ski trip and enjoy the vacation while you can!