Is my writing ok?

Pros know that they can’t just “bring it” when it’s time for the big game, presentation, or performance. Like revising for an exam. You don't have to just revise hard when there's a week before an exam. You have to practise constantly and never stop doing it. Now we never get a chance to do ACT maybe later we have to. So we have to mock ACT exams and we can go study in America.