Before every run, make sure that you stretch well. It is imperative that your muscles are loose and ready for the strain they are about to face. It is also a good idea to start off with jogging so that the body can warm up before you gain speed.
Taking it Easy:
You are not going to attain full flight from day one and should not try to do so either. Take it easy, and add speed and distance, once you are in the flow.
Being a Regular:
Make a routine and follow it. Make sure that you run as per your set schedule. Missing your running routine will leave your body at risk of sustaining an injury.
Always wear comfortable footwear that protect your feet and ankles well. Make sure that they help you in maintaining good balance and the shock absorbing ability of the joggers is good.
The surface at which you run is very important as well. If you are running on a rough surface with gravel and pebbles, you are likely to get an injury. It is best that softer surfaces are used when you are running. Grass, soft soil or sand are good options in this regard.
Running on the road can do as well but make sure that your knees and ankles can take the tougher surface underneath before you do so.