Do you really believe that?
Do you believe those words.
As
I
Will
So
Mote
It
Be.
For manifesting to occur and for you to have the capacity to create your reality you must make those words come to life for you.
You need to persist until they are believed.
Doubt in them will so a seed of fear that you have no power.
That you are just faking it.
Lying to yourself.
That is one of the core requirements.
I like Aleister Crowley's explanation of magick -
Magick, in the context of Aleister Crowley's Thelema, is a term used to show and differentiate the occult from performance magic and is defined as "the Science and Art of causing Change to occur in conformity with Will", including both "mundane" acts of will as well as ritual magic.
If we ponder that for a moment before we get all feisty and try to make impossible changes let start with the mundane and things closer to home and little creative master peices that we can get an handle on and that can slowly confirm our power to ourselves.
Finishing things that have lain dormant for years.
Clearing and de-cluttering to make way room for the new.
Ending relationships that foul our lives.
Changing the life of one other person by random acts of kindness
Learning more about your path.
These small seemingly mundane day to day happenings pave the way to bigger and greater things as time goes by.
Starting off with causing change to conform with one's will doesn't always mean the big and bold.
In fact, it is much less likely to happen 'big and bold' if you cannot muster the control of the small and insignificant (to others).
The hardest lesson to learn is control of oneself in one's own matters.
Get a grip on your life so that you feel the sway of magick slowly running through every fibre of your body.