How to write? Just WRITE

When i was young, may be 12 years old, i love to write stories. However, my stories are junk he he he.... I love heroine stories. Imagine if i were heroine like sailormoon -do you know that anime?- However, i stop writing since i feel that my stories not perfect. At high school, i realize that i can't stop writing. I read a magazine named Annida. It's a magazine full of short stories. I read it, i read it, and i start to write again. I really don't care about what i write. I just want to write. After a long time stop writing, my first short -ehm long- story is about virus. Computer virus.... How to make virus as trojan then enter it to main computer of terorist to avoid them attack us. He he he amazing story. That story come out from my head after i read a book about how to counter attack virus in computer. Now, i am still strugling to become good writer. Many of my friends ask me, how to write stories? Well, i don't know. I just write what come out from my head. Doesn't care if it was junk. After i write, then i edit it to make my stories better.