Don't worry about being a sad sack. You are entitled to your honest emotion. However, I have learned that being down is a self feeding frenzy. When I get down, I act down and by acting down, I get further down and etc...and down the rabbit hole I go. it's easy to do and I do it too often. At least now I can recognize it.
You are heading in the right direction, I am happy for you about the internet start up. Fingers crossed it leads to something.