The way to find balance or rhythm in our lives is to have priorities and then plan with those priorities in mind. If faith and church are priorities to you, then make a plan that allows you to cultivate your faith while also prioritizing schoolwork, sports, music or any other interests.  

Choose a time that is best for you. Are you a morning person? Then do your quiet time in the morning. If not a morning person, do it at night. Be consistent. Also, find a consistent place to have quiet time with Jesus.  

To prioritize, you have to say and believe that this is important to you. Seek first the kingdom of God (Matthew 6:33). Sometimes you have to say no to what is good to do what is best.