Need a bit more information than that, especially with how wide the world of CPA is.

First, how long were you doing it? 

What offers were you doing? adult, gambling, regular product / service offers.

If you were doing it any less than a year I wouldn't expect to be making mad money, it takes time and research to find the right traffic for your offer and sometimes you wont find anyone that's interested in that one.

Congrats man, keep up the good work. 

That seems realistic to me.

Daily Bump!