1. It/ you / want / maintain / well-balanced / life / you / must / give / priority / your work. 2. If / we / want / balance / life / study / it / be / important / for us / manage / our time / effectiv...

Here are the corrected sentences: 1. If you want to maintain a well-balanced life, you must give priority to your work. 2. If we want to balance our life and study, it is important for us to manage our time effectively. 3. If you work on an assignment for several months, you should take a week off when you finish it. 4. If teenagers are satisfied with their lives and relationships, they may usually be happier. 5. If you do not make sufficient time for your schoolwork, you may fall behind in your classes.