Stay with it, Hyphen. I know it's frustrating, but you will get that check. Probably sooner than you think. Just keep making sales, checking your account, and learning all you can about working with ClickBank. Trust me, getting a check from ClickBank will keep you revved up about being online.
Here's another thing: are you tracking your affiliate links? Getting the amount of money you expect for the work and time you're putting in? The hardest lesson for me to learn has been keeping an eye on how much time I spend online compared to how much I earn per hour. Find a good tracking strategy and stay with it... and monitor it.