"Your first 10 films suck. It's a matter of getting them made and out of the way so you can move onto something good." I'm paraphrasing Robert Rodriguez from his book Rebel Without a Crew which in my opinion is one of, if not the best book I've read on filmmaking.
He is unbelievably right about this and making good work comes down to making enough bad work to know what not to repeat. Or you could say knowing how to make good work but it doesn't sound as poetic in this post... Another person who sums it up well is Ira Glass. His words are turned into this beautifully made film called The Gap which is worth two minutes of your day:
Now the reason I bring this up is the fact that I have made a lot of crap. A lot of films in my high school, college and even professional career are less then ideal. Be it experience, time, resources, creativity or the dreaded "client." And while many people may see these films as something to ignore and move past, I see them as important stepping stones for figuring out exactly who you are as a filmmaker. And two of the most important films that I've made thus far are Surface and Cycle. Both 20 minute shorts that I created with Mark Mazur in Oshkosh, Wisconsin. These two films pushed me in ways that nothing else had because of the lack of resources and the overflow of ambition. Trying to create a post apocalyptic world and an underground science facility in the middle of Wisconsin for roughly $1000 each, isn't an easy task. And we may have only succeeded to a certain point but I think they show strong elements of filmmaking or at least skills starting to blossom. If you really want to learn how to make films, nothing is better then producing something as well as shooting/lighting/directing/production designing/editing/sound designing/foleying/ADR'ing/mixing and a few other things thrown in there. So check these films out, laugh at the bad, enjoy the good and go out and make something of your own.