Squid that is eaten raw is typically chewy, so if you do not care for that you might want to consider baking/cooking or frying up your squid. The way in which you choose to prepare and at your squid will just depend on your own personal preferences. Some people enjoy to eat squid raw sashimi-style while others like to eat it after it has been cooked or fried.
By eating your squid raw though, you will most likely get more nutritional benefits from it than if you were to cook it. Squid has lots of healthy fats in it which you will certainly want to get lots of in order to stay healthy as a whole.