“The belief that the ability to learn is not fixed, that it can change with your effort.” says Angela Duckworth. You have to put effort in your learning.
Practice is basically training. You can practice anything from, music, to sports, to plays, to words, to equations, anything. For example, in Carol Dweck article, paragraph 8 “ When babies need to tell their parents what they want, they start practicing talking themselves.” Everyone needs to practice,