Goals are important, but not for the reasons we think.
They give you the coordinates: where you're going and why.
What's more interesting are the vectors: how are you going to get there and what do you need to do to prepare?
And that's the real value of goals. Not that they tell us our endpoint, but rather an outline of the path we take to get there. And where to go after that.
When well-formed, goals tell us what we need to practice and when, from the macro (months) to the micro (session).
A tangible example: practicing a skill 3x/week vs. 2x/week nets you 50% more sessions spent practicing. That's huge - something to think about, regardless of your frequency.
Think hard about your goals; they only work if you invest time and right intention, the lifeblood of a practice. Your most valuable currencies.
And if you're not - why are you training?