For many english language people, the verbs lernen and studierence often lead to confusion on what to use where and when.

lernen (to learn)
studieren (to study)

Lernen is often used context which is school related, language learning, personal or work experience.

Studieren is used only in the context of  University related coursework.

Examples:

Ich lerne Deutsch (learn language)
Ich studiere Biologie (university degree)

You can also write instead of lerne, but the whole meaning changes.

Ich studiere Deutsch.

which means that you are studying German as major degree in a university.