Grey cloud vs. Silver lining

I have been making excuses for way too long. If I am to change my life it must start with me!
Why are some people more prone to seeing the glass half-full, while some continue to see it as half-empty? What must be done or what must happen to turn your thinking upside down? These are the questions that I have been thinking tons about lately! I am working (and not succeeding) on trying to alter my thinking. I bought "The Secret" and "A New Earth" in hopes that they would help to steer my thinking in a path that is positive-um....yeah...couldn't get past 5 pages in either book. I tried 3 separate times to read "The Secret" but failed all three times! Granted I have NEVER been the cheerleader type but I am sick and tired of always seeing the grey cloud and not the silver lining inside!! I am open for any and all suggestions. HELP-I really don't want to pass this type of thinking on to my daughter.

No. 1 I am grateful for the ability to be able to talk openly and honestly about what is going on in my life.
No. 2 I am grateful that I have a Hubby who sees the glass as half-full. My daughter has a 50-50 shot at being normal!
No. 3 I am grateful for Lilly the makers of this!

Thanks for caring,
K