When you are sure of your progress, try it on a red run but slowly and with a helmet. Think about your style while practicing and focus on the move that you want to improve. After you spot a possible irregularity make corrections but one by one at the start. Use your sense to choose moments for practicing during the day. Your physical health and condition of your body will find the best time. Sunny day would be an award and don't throw it away.
Skiing tip 1
Skiing tips for Intermediate skiers
Choose a blue or a green run for practicing new tricks
and for correcting your style.