If the grinning skull dreamed you, then to you not to avoid the family conflicts. If in a dream you take a skull in hand, then after such dream what you undertook, everything will fall at you from hands. The dream in which you see the friend's skull, means that your friendship will break against his envy. To see own skull - to repentance.
Be sure and keep any other thoughts out of your mind before drifting to sleep as a cluttered mind can decrease the chances that you will remember your dreams upon waking. Also, focusing on remembering your dreams upon waking in the morning is another very important thing. This sounds very easy, but is often hard for some to do. Interpret a dream by "dictionary dream of interpretation"
When you very first wake up, simply think about your dreams. Don't allow your mind to drift off to other things, just lay there and think about the things you dreamt about the night before - dictionary dream meaning.