Unless you own a pair of skis and ski boots, every mountain you visit will provide you with rentals. Trained professionals can assist you in choosing the right boots and skis based on your height, weight, level of ability. These will vary accordingly in terms of length. Using ski poles are typically based on preference.
Once you’re dressed appropriately and have reached the top of the mountain, it’s time to develop the skills necessary to safely make it down to the bottom. The movement of your skis is adjacent to that of your feet. So, when you turn right, your skis will turn right. It may take a few attempts to gain the proper balance, but you should always have your skis pointing toward where you want to go.