Ship Broken
"The cost of not shipping always exceeds the cost of shipping broken."
A broken thing that exists beats a perfect thing that doesn't. Gmail was "beta" for five years. The iPhone launched without copy-paste. Amazon started as a bookstore in a garage.
While you're perfecting your product, competitors are shipping solutions. While you're avoiding criticism, you're missing real feedback. While you're planning forever, markets are moving.
You can iterate on something that exists. You can't iterate on vapor. Ship the minimum viable version that solves the core problem, then improve based on real user feedback.