I believe that was Edison. Imagine what the world would look like, if he gave up too soon.
But 70,00 usd in 10 months ? I don't mean to be rude, but you should do better than that. What kind of "work" are you doing ?
You should really follow the advice that rvince gave. I am 100% sure it will bring you a lot more money.
You can also PM me or talk to me on ICQ in case you need help/advice.