Stop drawing, start drawing, keep drawing, that's up to you! You draw for yourself, that's how you can keep drawing until you are good at it enough to make others pay you to continue drawing. Or you link your pen to a bunch of explosives which will blow up as you stop drawing, that's a good way to motivate yourself too.
There is some progress in your pony form. I would recommend you pull up some pony images and draw from examples a little, just to get a good idea of pony proportions. There's already generous quantities of how to draw guides on ponies and many other subjects! Looking those up would also help you to improve your technique so you do not have to brute force everything.