Drawings, Why?

Since I've joined deviantart, I have realized that having an account means that you show your artwork. Not good.
I have been told by many people that I am good at drawing, (Thank you to all who have said that, I really appreciate the ethusiasim!) but I just can't seem to draw anything that I like and actually load it up to DA. Most of my drawing's that I have shown to people are looked upon as "A Work of Art" honestly, I think I have heard that phrase over a hundred times. Over the past few days, I have drawn numerous pictures, and I still can't find one that looks good in my eyes. I think I'm turning into a perfectionist, and I hate it. My parents have been telling me to do something over the summer that involves brain function and dosen't have to do with a computer. Of course, I counter back saying that I have been practicing on my drawing. And then the horrible question is drooped like a bomb on me, "Where are your drawings?" I get away saying that the picture had a smudge from my hand while sketching it out with a pencil, or that I started painting with water color and the water bowl dropped over the paper and ruined the whole drawing. Things like that - excuses. I feel stuck.
Sorry for acting so pessimistic, but it's really been getting to me over the past two weeks.
Has anyone else gone through this?
It's not that I think my drawings are too good, (for anyone who thinks this while reading this journal entry, you are gravely wrong) it's just that I think they are bad. It's as simple as that. What startes out a great idea in my mind, and then get's turned into a drawing are complete opposites. My drawings never turn out like they imagined it, or halfway throught the drawing I loose inpiration. Then comes the garbage or the shredder. Why do you think I only have 4 pictures in my gallery? They were the only ones who survived my criticism. Well, and a few other's that my mother found and demanded that they would not be put in a landfill.
Ehh I think this entry is just gonna weigh people down. (I just re-read this)
On a happier note, I think I am going to have nightmares tonight after watching The Terminator and Aliens.
Jenna- if I come running to you tomorrow about some crazy dream where we all die, blame TV.