I feel the power for my life, my reality, is mostly me, with a little God/dess-assist at times. I have made some amazing changes in my life, that have left me feeling !!! and in awe of my abilities. I don't think anyone could talk me out of being able to do anything.
Now, occasionally I am after something and don't see the road clearly, and that's when I feel some sort of power larger (smarter?) than me steps in and says, This way, dummy! through circumstances.
I find that anything is possible if it is broken down into small enough tasks.