Both my parents are cheaters

... not necessarily. Just because both of your parents are adulters does necessarily mean that you will grow up to be the same way. Sure you have probably inherited some of your personality traits from your parents, and you just like anyone can grow up to be a product of your environment, but all is not lost.

Yes, you are a product of your parents, but you are also an individual with a mind, and a freewill of your own. You can consciously choose to not be like either of your two-timing parents. Sure you will likely be going against hereditary, and environment, but it's not hopeless. You, most of all, need a moral compass, and healthy belief system in your life.