I break wind quite regularly, several times a day, its embarassing. Only 18. Are there certain foods I can avoid to help with this problem?

Specific testing. Yes, specific testing for carbohydrate (sugar) intolerance can be very helpful. Simple breath testing for glucose, lactose, or fructose intolerance may show which foods to avoid to resolve your problem and is the best way to start.
Normal. As the children's book says, everybody farts. Typically, most people pass gas about 15 times a day. If you want to try to decrease the amount of gas you pass and how bad it smells, experimenting with avoiding certain foods (often beans) can help, probiotic foods, like live culture yogurt, can also sometimes help.