Feeling let down in the 3D when trying to live in the end?

I've been an avid manifester for years and recently I've become immersed in Neville Goddard. I've read all his books, and have just commenced a re-read starting in order of published, right now I am up to Feeling Is The Secret. I've also listened to the original lectures for a while and have been listening to them overnight.

A lot of things in my life just haven't turned out the way I wanted them to turn out and I'm trying to apply Neville's method of assuming the wish fulfilled but then I see the 3D and everything shatters when I'm remembered of what was done to me.

How did you manage to overcome the 3D? I feel like the 3D has been getting worse lately even though internally and during SATS before bed I feel like everything has worked out and it's all going well.