Couldn't sleep last night

I guess one of my worst personality traits is that I worry too much.  I always have since I was very, very young.  I worry about all things great and small and it takes away some of the joy I could/should be experiencing.  After all, life is short.  I recognize this but so far have been unable to change my habits.  Last night I got to thinking about my parents.  Honestly, I have the best parents that ever were.  They are the definition of pure love and self sacrifice.  They are not perfect but have lived their lives perfectly, if you know what I mean, they are examples for us all.  Mom is 70 and Dad is 73.  Both have their health issues, both have high blood pressure and high cholesterol.  Dad conquered prostate cancer years ago and Mom, who was diagnosed with lymphoma 2 years ago, is in remission.  I am at an age now where many of my friends have lost one or both parents and I find myself with thoughts of my own folks mortality.  This is what kept me up last night, I tried my best to battle and banish these thoughts from my head but in the end the negative thoughts triumphed.  And all I have to show is the bags under my eyes and the realization that I accomplished absolutely nothing by worrying.  Why am I mourning my parents when they are still very much alive and active and happy?  I mean none of us gets out of this alive but I am confident that Mom and Dad aren't going anywhere soon.  So, today I resolve, once again, to fight the worrisome thoughts that intrude on my mind and on my time, to try to live more joyfully and most importantly to call my parents just for the heck of it and say "I love you"!