I have found in life...that I still get grumpy when stuff doesn't hit that space between when I wanted versus what I ended up with. But in all honesty, doing ANYTHING at all when it comes to creating - is about 20x better than doing nothing at all. And with stuff like this, it's always a study. Right? You're studying form, you're studying motion. I always find these kind of doodles (sketches) to be incredibly meditative. But not just that, you know I have taken doodles that look like a booty on a stick and just from these abstract ideas turned them into full blown digital pieces. So I have found like...as long as you know what's going on (sloppy handwriting person here) - pen to paper you're doing exactly what you need to be doing.
But you know, love the wabi sabi. Feed them pathways. And if you have a direction you want to move your art towards do some studies. Which is like - collect actual pictures of artist you dig, break them down (you can literally sketch over them - copy them freehand - create your own renditions or just literally STARE THE HEY out of them and just figure out what you like about them). But celebrate the act, because I promise you while anyone alive can create in some form - most of us sure as hey don't. So you know, do you - love you =)!
You got this m'person!