Complex sentence: Rodríguez-Gerada was one of the first Hispanic immigrants to enroll in his local school system where he was bullied for being Spanish, so he rebelled against speaking it in order to fit in with the other children.
Split into simpler sentences: Rodríguez-Gerada was one of the first Hispanic immigrants to enrol in his local school system. There he was bullied for being Spanish, so he rebelled against speaking it in order to fit in with the other children.