Until you make your abstract goal more solid and figure out what makes it personally meaningful to you, it will keep losing out to shiny new ideas.
Surely you can write one word, even if it's "The" or "If" or "A". And if you've written one word, surely you can write another.
Voice is a skill to be developed, like any other writing skill. Give yourself permission to stretch it and challenge it and expand it and enhance it.
Can you see ways to redefine "enough" and put it within your reach? Can you see ways to feel like enough right now?