How can I be pretty like the other girls?

You are

Use nature medicine

You can't change who you are, but personality does count for a lot.

Define pretty. Most will say it's about confidence, chin up, walk tall. Be in good physical shape, try hard. And dress somewhat in fashion, you do not have to be over the top..you do not need gobs of make up. Just be clean, smile often..that will make you prettier!

paint your face like a clown

Don't do anything, be yourself.

Smile. Look pretty

Get some bangs. It almost always helps.