This is the 5012th most frequent Japanese word.
習
"習" means "to learn" or "to practice."
習います is used here to convey the action of learning or studying something actively.
私は日本語を習っています。
I am learning Japanese.
習いました in this context speaks about having learned a skill or technique from someone.
祖母から料理を習いました。
I learned cooking from my grandmother.
習う予定です indicates a planned action of beginning to learn something in the future.