Did you ever count the number of days you have been on this earth ?, most of them give the answer 'No' for this.
But did you count the number of memorable moments in your life ?, the majority give the answer 'Yes' for this.
In life we never count the days, but we can only count the memorable moments, so try to live the life to the fullest of you can.
Whenever there is a situation that you felt disturbed by your loved ones, just try to recollect the moment you are happy with them, then the past lovable incident can replace the present sorrow ones and make you smile.
Just take your life to be an MP3 player and skip off the song you did not like and rewind it to the song you enjoyed before.
This is not a tip, but something that you forgot doing it. Believe me, try it, the life is yours.