To study is the process of learning - in school I studied many subjects and took exams to assess what I had learned. You cannot "learn" anything in school if you do not "study."

You learn English, by studying it. I study English by reading English books. I study English every night. I'm listening to English language music, and studying the new phrasal verbs I find. I learned English by studying every night, reading English books and listening to English-language music.