The base of your skull is near your throat chakra, which controls the way you communicate with yourself and others. One of the reasons your silver light "just flies out" is because your throat chakra is all out of whack.
There is a great book called The Book of Chakra Healing by Liz Simpson which can help you work with all of your chakras.
Another thing you can try is to start with learning to control your breath. Begin by sitting comfortably with no distractions (no tv, music, cell phone, etc.) and just focus on your breathing.
Inhale slowly for a count of four. Hold for a count of four. Exhale slowly for a count of four. Hold for a count of four. Repeat.
Do this for three minutes, twice a day for a week.