http://www.stevepavlina.com/blog/200...g-to-manifest/
See #5. I think that if you spent some time dealing with your subconscious beliefs, you'd find it easier to manifest intentions.
You seem to be a lot like me, so excuse me if I sound presumptuous as I make some (probably faulty) assumptions. It seems to me that you don't like not knowing stuff. It makes me uncomfortable to think I'm being controlled or influenced by subconscious beliefs/fears which are also irrational. I think you need to accept that there is stuff you don't understand affecting you. And usually, the root cause of a belief that you don't deserve everything is self-esteem, not high enough (not necessarily low, but not necessarily high enough). I found the ideas in The Magic Pill to be very effective and interesting.
The Magic Pill