Thats awesome. I recently had my first few sales as well. Got a check for $170 which was nice.
I never realized how profitable clickbank actually is, but if you really learn what you're doing, you can bank well with it.
The hardest part with Clickbank is the "drilling". Like you're drilling for oil. It takes a lot of work upfront.. but when you find those oil reserves, all you have to do is keep drilling for more aka scaling.
And don't stop. After I made my first sale I relaxed a bit, about 4 days later made 5 sales in 1 day, then it completely stopped... because I wasn't using my "drill". Keep going hard, and you'll do good.