1. Schedule practicing like you schedule all of your other activities. When you take violin lessons, it's not just about fitting in time for a lesson. Make sure you look at your schedule for the whole week and include practice time when you consider what other activities you will be participating in. Make a calendar appointment for your practicing just as you would your violin lesson.
2. Practice violin before you do your homework. In talking to parents in my studio, I've found that families who try to practice last thing in the day - that is, after homework, dinner, and bath - have a really hard time getting their students motivated. Practice as soon as you get home from school so you're fresh and ready to go. It's a lot easier to do homework later at night than it is to practice.
3. Put upcoming recitals and performances on your calendar well in advance and plan your work backwards. If your next recital is in December, plan on having your piece memorized and well-prepared by early November. Use what you know about your playing and your work style to plan backwards so that you are always prepare and never taken by surprise when a performance comes up.
Previous posts you may enjoy:
The Art of Practicing
Starting the Journey : A Guide for New Violinists and Their Parents
Kick it Up A Notch!
Hacks for Your Violin Lessons