Perfect?

People call me a perfectionist, I think it's in a bad way. This is the order of how I treat task:

1. I always start with trying to make something perfect. Try to make the science essay in style with what only a Nobel Prize winner can do, to sew the dress just as perfect as if it came from a store, if not even better.
2. Then I realize that I never will be able to so.
3. I get destroyed. I cry, bang the wall with my hands.
4. I give up and just try to make it average.
5. Then, I get angry at myself because I haven't done my best and tries to fix it.

Every single time. Every single time. It's the 5th part that make people believe that i'm a perfectionist. I unsually run around, crying and working at the same time. To believe that I'm a perfectionist is wrong. I just get's crazt because of a task. Right now I'm trying to make a web page for a biotech competition. Our first goal was to win this thing but now I'm in the 2nd stage. I just realized that it's only a week left and that it's really, really hard. Tomorrow I will cry, and the day after that I'll work like crazy, making my head hurt even more (yes I have still headache after my concussion). My can't I learn on my misstakes?