Stuck at the 'vibrational' stage.

So I have been attempting to astral project for approximately four months now. I understand the methods that are used to achieve these states but I am getting stuck, at the point I imagine to be just before actual astral projection.

To add some context basically I fell asleep (even with no intention to astral project that night) and I woke up and could not move. I knew this was sleep paralysis and so I decided to try the rope method at this point because I knew sleep paralysis would be a good starting point to get me out of my body. I imagine the rope and pull, this lasts about two minutes and every second that passed the vibrations I felt got more intense. There was one point where I started to see some faint blue light emerging from in front of my eyelids and I knew I was so close. Typically, it was at that moment I woke up and my eyes opened. I really don't know what I was doing wrong, has anyone else experienced this and does anyone know how I can overcome this challenge? Thanks in advance