Foiling can be risky, the less boarding experience the higher the risk. We always recommend training with an experienced instructor. There are also Foil designs that are better suited to learning. So do not try to learn on an expert level foil.
You only get one chance to experience foiling for the first time:
Your first experience can make you or break you in the sport. Do not try to foil in bad conditions or on bad gear for your first time. You are stacking the deck against you, and your are minimizing your chances of success, and maximizing your chances of injury.