o.k. so you aren`t sure whether your thoughts create reality. let`s try this then.
for 21 days you are going to do an experiment to see what will occur in your life. you don`t have believe, expect or wish anything. just do some simple things constantly for 21 days to prove, one way or another, whether visualisation effects reality.
step 1) get a note book and write down some goals, desires, destinations, etc.
step 2) pick a time each day where you can be quiet and alone for ten minutes or so to concentrate and visualise the things you want to happen in your life in the next 21 days.
step 3) as the exercise unfolds write down impressions, coincedances and results you get.
there you are. good luck and keep me posted.