After almost 2 months without achieving it, I did it last night. Here is what helped me
Since last December I started performing OBE regularly but after the beginning of April I did not do it again, neither with techniques despite trying many times nor spontaneously that it had also happened to me like this the first few times.
What happened yesterday is that I returned to Robert Monroe's Hemysinc audios, The Gateway Experience, specifically the free flow tape in focus 12. I listened to it before going to sleep, in fact I didn't finish it because I was already very relaxed and wanted to sleep, so I listened to it a little more than halfway through and then I went to sleep very relaxed.
Coincidentally, I hadn't listened to hemisync for almost two months and when I did listen to it almost daily it was the most prolific months in OBE, but I didn't think they would help me like that.
In the middle of the night, taking advantage of a microawakening, I became aware of trying to go out and felt strong vibrations, I began to push the second body against the physical one (it is a known sensation). It was difficult for me to get out, I had to press several times and I felt leather-like creaks and electric clicks. I pushed harder until I sat down and left. Out of bed I saw my body and felt like it was a worthless disguise. Then I walked and flew around the house seeing my wife and children. When I saw my wife I felt sexual desire and I returned to my body instantly (this happened a lot to Robert Monroe).
Consider hemisync not as a direct means for OBE but for preparation. I had had a headache and general malaise for days and with the tape it went away! I believe that the key is in the synchronization of the hemispheres and that this eliminates distortions and blockages that prevent OBE.