Meditation to prepare for astral projection work

[luffy28]

I was going to ask can I practice deep physical relaxation / trance and the exit technique separately multiple times a day?

An example could be doing the exit first. Since that is the most difficult for me then doing the dpr / trance another time.

Edit: I also wanted to ask if I should have support my for neck / head area. Can I put a pillow? If not a pillow then can I get one of those things that goes around the neck?

Thanks.