This world would be a much better place if we could all disperse with this thinking of ourselves as being inherently “wrong” when we fall short of our self-imposed goals. It’s not that we aren’t good enough, just that we’re not ready.
Think about it like fruit on the vine. It takes time and the right environment for it to ripen and reward with sweetness the mouth of that to which it is brought. A strawberry is no less a strawberry when it’s green, small, and covered with irritatingly tight, hard seeds. Its time has simply - not yet come.