Hello, I am quite new to this, but I agree that expecting is not good. When I do my visualizations I don't expect because I know it has happened, how are you going to expect something that has happened? It's a contradiction :-) IT just has to manifest.
I know how complicated it is to have that feeling, but try your hardest, there is nothing to lose. If at this moment you can't feel as it had happened, maybe tonite you will be able to... you are the creator and you can change your feelings! And once you can do it and have felt how wonderful it feels to know that it has already happened, you just have to remember that feeling to be able to visualize like that, do you know what I mean? Sometimes it is very hard for me, but practise makes perfect and you can always change your reality!