It really depends on what you want to learn.
Mathematics like any field of study has a lot of context. With mathematics you have all the formulae, proofs and identities but then in addition to this you have all the relations to real world problems which require a skill-set to translate words and pictures into mathematics.
Being able to solve things once you have all the formulas, constraints and equations/inequalities is one thing. Doing the word problems is another problem entirely.
Which things are you doing or want to do?