Okay, so to be honest whenever I have tried to go into SP, even when I am doing a WILD I have never gotten through it. My new problem is not lasting through SP, but just getting it. Before I knew what lucid dreaming was I always would get this funny dizzy type feeling if I would lay down for like 1-5 minutes before I slept, and didn't know what it was.

I did some research as I was first starting and found out about SP and how that was the REM stage. I eventually did enough research to see all the scary things related to SP and I was pretty nervous anytime I tried to do it. Even though I was nervous I could easily start going into SP noticing my eyes moving fast and suddenly my heartbeat would get louder and I would feel oh so much heavier. At this time too, I would start going into SP by around 2-6 minutes of laying down. Most of the time I would try to do it for the fun of it at night before I slept, but not during WILD attempts.

Well, now I had stopped worrying about lucid dreaming for about a month and when I tried to go into SP again, I just don't get it at all. Sometimes I have been laying down for close to 30 minutes and I get nothing, when before it was so easy. I am mad at myself now that I would never go through with SP because I was scared. Whenever I would get it before, when my breathing became hard I would just stop because it freaked me out. Now of course I have no fear of it and I would just love to be able to hit SP again.

TL : DR - I used to go into SP in 2-6 minutes, then I stopped trying and about a month later I can't hit SP even if i lay down for 30-45 minutes.

Any ideas?
Any recommendations of what I should go when trying to enter SP?
Maybe specific feelings that I should ignore?
Also, what is the best time to do it? When i'm really tired? (I usually just fall asleep)