The best thing you can do right now besides practicing good hygiene and avoiding crowds is boosting your immune system with Vitamins. I give my children 1000mg of Ascorbic Acid (C powder mixed in drinks) 3 times a day (2000mg for the adults). Also add Vitamin D and Magnesium. There have been hundreds of studies of the positive effects of high dosage Vitamin C, especially when it comes to prevention and recovery from illness and the protective benefits to soft tissue, which Coronavirus attacks, primarily in the lungs.
THE BEST THING YOU CAN DO IS GET LOTS OF SLEEP. Check out the Medcram videos 16, 17, 18. Sleep starts at 5m30s-7m:30s on Medcram 16.