I'm guessing you think you did last year, but you didn't though.
Have you really been worrying about this for the last six months?
Are you still around 20% bodyfat? If anything, that's having more of an influence on your muscle gains during a "bulk". Strength progress would have more to do with your actual training program.
How tall are you?
What's your current weight and general fat level?
What are your current maxes in the basic lifts?
Based on all of your previous threads, I think your training and diet need serious improvement, and have probably needed fixing for a while. It has nothing to do with your CNS, nothing to do with Anabolic Resistance, and nothing to do with a lack of sleep.