A few years ago, when the ATP was being changed and the CTP course was being developed, everyone was running out to take the ATP written before the cutoff date. Private pilots were taking it with 50 hours of flight time, just so they would have it done. It isn't hard if you put the effort in.

They all just studied the Sheppard Air course for a few days and took the test. All of the questions are on there. Just use the study guides. Only look at the right answers. Don't even look at the wrong ones. You will be fine.