Attracting simply through intentions

Hi Brooke,
Is having healthy positive thoughts and feelings enough to create change?
For example
Thought: I am going to be wealthy
Feeling: excited

Is there change without the person taking action to put those thoughts into play or is putting out the right vibrations enough?

Or say you want to bring a great partner into your life so you think about how you would feel in their presence and really envision how they are to you. Would that manifest the right partner coming into reality?

Thank you in advance