I Need Help

I need alot of help. Im practically planning this by myself! My mom isnt helping and my dad isnt either. He doesnt even know im having one. Im having a really big problem! only have til dec to plan this! does anybody know any good sites that i can look for any pretty dresses, tiaras, anything. I hope somebody can help me! we barely started thinking of it cause we thought we werent going to have money. Now that i do my mom wants it at mexico and i want my friends to be there! but they cant! someone plz help me plan
Thank you,
Christina www.angelblue_20072003@yahoo.com