The sensations are the important thing. For example, to manifest abundance, it is not necessary to declare in words "I am richer than Elon Musk :-)". It is enough to feel abundant as long as possible.
The problem is that many times we don't know how it feels to be really abundant and we can't connect with that concrete feeling.
A good solution is to do small things that you would do if you were already abundant: something small that you can afford.
A coffee in a fancy hotel for example. Then take that feeling and try to replicate it in your visualizations.
If you do that you will notice the improvement.
I hope this advice helps you. Have a nice day.