Given your age (young) I would suggest getting some advice from a "CCN" that will probably last you for a lifetime:
Certified Clinical Nutritionist (CCN): A CCN is a highly qualified nutritional professional with a 4-year bachelor's degree and a 900-hour internship, a 56-hour post-graduate intensive study in clinical nutrition or a master's degree in human nutrition from the University of Bridgeport or Bastyr University and must pass the national board exam issued by the CNCB . The CCN focuses on how foods are digested, absorbed, and assimilated, and ultimately how food affects the body biochemically. Among the many aspects of nutrition research considered within this context are by-products of digestion, gastrointestinal health, neurotransmitter response, immune function, metabolic shifts and balance, allergic or sensitivity reactions, and systems and pathways of detoxification. The CCN's approach to diet structure is developed according to what is best for the individual-not necessarily what is a standard recommendation for the general public at large, or for all people experiencing a particular health concern. Rather than strictly advocating a pyramid or food-group-style diet, the CCN will determine the healthiest and most effective program for the individual according to the latest nutrition research and the unique biochemical make-up of the individual.
(I added the bold type.)