Do this every morning for 20 minutes or every night before you go to bed. The regularity is important. Don't worry if you skip a day or two each week, but try your best to keep it up at least five days a week. Over time you will find yourself more relaxed, more patient, a better listener, more centered, and more discerning. It is fine to do it alone, but see if you can get a group of people -- two or three is enough -- who meet once a week to sit together for longer periods. Try sitting for two 20 minutes sessions. Have a leader ring a bell to get you started and be the timer. Bow each time a session is over. You will be glad you did it.