Even if you're unhappy just pretend that you're happy. Eventually your smile will be contagious to yourself. I had to learn that. I used to think 'I'm being fake ' but you know what? Better to be fake and happy than real and miserable.
The American Dream is still alive out there and hard work will get you there. You don't necessarily need to have an Ivy League education or to have millions of dollars startup money. It can be done with an idea hard work and determination.