Inexperienced cooks often prevent flavor from developing in food by ?

Most inexperienced or novice cooks have the tendency to prevent flavor from developing in food by exposing the ingredients to extreme environmental conditions, undesirable ingredient interactions, swap ingredients and constant opening of pot or oven that will make the flavor escape in the air. 

Moreover, beginners in the kitchen do not have the patience to read all the instruction before starting cooking, only to realize that there are special instructions written on the last part of the recipe.

cutting out negative people, changing their diets, exercising, taking off days from work or school, etc