One of my teachers in college used to talk about this. I never had any of this, because I was raised by an artist mom, so art supplies were as natural to me as a baseball or a toy car. But he said that the best way to deal with this - and it's all intimidation by the blank page - is to own the page. Draw a simple border around the edges, even if it's faint, and barely legible. Then you own the page, you staked it out as your territory. And, it can be incorporated into your mental process constructing the composition at the first stages, blocking out the page. Draw a border, then start establishing landmarks, then start blocking.
That, and stop stressing about failure. A failed drawing is nothing, and most artists will have more failures than success starting out. And will still have failures for the rest of their careers. Artists don't sit down and draw perfectly every time. We just see the successes, the failures get tossed out (or back in the old days, thrown on the fire).
It's like learning guitar - you're gonna play Stairway To Heaven really badly around 100 times, before it starts to sound good. Nobody cares about the 100 attempts, and you only show people how you play it well.