TIPS FOR PROFICIENT RUNNING

Most runners begin each run too fast.  The first mile should be at a pace that is 60-90 seconds slower than you expect to average for the remaining miles.  Yes, this may seem like a pedestrian pace but it allows your body to gradually warm-up and acclimate to the rigors of running.  Additionally, you can focus on establishing a rhythm of efficiency through a high cadence.

You should establish a cadence of approximately 180+ steps per minutes.  Land mid-foot with your feet just in front of your center of gravity.  By taking as many steps as possible you will minimize your GCT (Ground Contact Time) and increase your cadence.  This practice will improve your running economy and reduce the risk of injury.

Keep your hands soft, as though you are carrying a live butterfly in each one, and between your sternum and navel.  Run with your chin up and shoulders back in a relaxed state.

This technique requires practice and patience.  Take brief walk breaks when you feel your form is diminishing and transition smoothly back to running.  

By incorporating this run/walk technique, you will be able to sustain this proficient running technique throughout each run.
As the run progresses, your form is likely to diminish.  Be mindful of how you sound upon impact, maintain a pattern of rhythmic breathing, and a positive mindset.

Eventually, the proficient running technique will become intuitive and feel completely natural and you will be able to run faster with less effort and a minimized risk of injury.
Good luck with your running!