Hello metaphy6
The best way is to sit, relax and then scan through your day. Identify the areas where you are not satisfied and would like to work on it. This could be Health, Finance, Relationships etc. Or there could be some special event or opportunity for which you are preparing yourself and somehow not happy with your preparation. This could be an interview in which you appear after a week; or an exam which you will be taking in near future.
Once you have identified you area, establish your purpose and then choose the appropriate Paraliminal CD. You can also read the accompanying booklets that come with the CDs to derive maximum benefit out of it. Understand one thing that everything revolves around your purpose. You pick up a CD or CDs depending upon your purpose and what area in your life do you want to concentrate upon.
You can listen to multiple CDs, but there should be a 20 min gap between them at the minimum. The ideal would be at least a sleep cycle.
I hope that I was of some help here. God bless you.
Kind regards
Vaibhav Sharma