There is only now, no past, no future.
I think your trying to say that you must exist in the moment, which is true, but change can only happen in the moment.
It's a bit like saying you're be happy when you're rich. I don't think you can rich with that thinking.
If you want riches, you must intend them right now, be the goal now, believe the goal now.
Exist in the moment, but create the moment the way you want it to be.
Does that make sense??