You can be in a light trance or a deeper trance. I believe the best condition for a projection attempt is MABA (mind awake body asleep). So if you are not sure if you are in a deep enough trance, try to get up. If you get up, you're not deep enough.
The time that it takes to get there varies from person to person and also from time to time, so if you're not paralyzed you need to make it longer. But I don't think you're far enough along in the program to try to exit anyway, so I'd say, keep doing things as the program tells you, and you'll be fine.