@sven - check your parental controls
@kellz - I feel the same way as everyone else here - it's normal, so instead of repeating everything let me make an observation. From reading your other threads and this one, I don't think you lack any talent - but you (and it's the hardest advice to take yourself - i suffer the same curse) skip all the sketching and planning and skip straight to freeform, expecting whatever you do to mirror your minds image, and it rarely rarely does.
Work on sketching, planning, have a really clear plan of what you want to animate, collect references for colour and style and draw draw draw. If you honed your drawing skills so that you can sketch out a plan faster and faster you'll get to animating but with a solid purpose. I often do the same as you, also when making music, i sit down with no idea and just start 'doing' - its fun for a while, then after an hour+ I get dissatisfied, then after several hours+ I start giving myself a headache (on the case of music) or just generally hate what I'm doing.
Don't be disheartened, break out the pen and paper. It's a lot easier to scrap a 30 second doodle than feeling disheartened with an unplanned result after 4 hours wasted.