The blank page isn’t empty. It’s full of every option you haven’t picked yet.

Blank does not mean nothing is there. A page you have not written on is holding every version of the thing at once, and the weight you feel is not emptiness, it is choice. Nothing has been ruled out yet, so nothing is real yet either.

Pick badly on purpose. Write the obvious first line, the one you would be a little embarrassed by, and let it sit. Options get quieter once one of them exists, and you can fix a bad line much faster than you can fix a blank one.