Originally Posted by IamEssential

You can't, it is meant for people who can do it full time. Even at that it is a rip off (they charge a huge premium for accelerated instruction) and you are risking yourself to multiple training failures (by design ATP will send you to your checkrides before you are ready) which means the time saved to get to the Regionals will be wasted because you won't be able to get the the Majors. If your case you want to look at a local airport that offers flight training and take it more slowly and at your own pace. Like 2 years or so to get all your ratings through CFI.