Complex sentence: Once he completed secondary school, Shavershian who was inspired by his bodybuilder brother, joined a local gym and began learning about nutrition and training, and applying it to his pursuit of becoming a bodybuilder.
Split into simpler sentences: Once he completed secondary school, Shavershian who was inspired by his bodybuilder brother, joined a local gym and began training. He started to learn about nutrition and training, and applying it to his pursuit of becoming a bodybuilder.