I've only delved into the astral plane twice. Once naturally through sleep paralysis as a child, seeing myself, and snapping back to my body. The second was through lucid dreaming but I'm not entirely sure what happened.
How does the perception of being away from your body feel? I been doing techniques and one time just last night I had about fallen asleep but kept focused on the thought of leaving my body, I could easily imagine another version of myself exiting my body but my head and focus didn't. It'd almost look like my astral form was stuck to my head if one was watching.
Then I got frustrated and snapped out of the state I was in and got mad. This work is frustrating.