I must learn MySQL !

I am working a project which I had started 2 years ago but never could complete it (being lazy , being prefectionist , and giving my time to other things !) for that I need to learn MySQL ,

I need a login system for the site , and I want each user have a profile and they be able to add up to 100 favorite sites to their profile , and I want to learn to show these information easily on the pages, like all the UserX's Favorite sites , and he should be able to easily delete/edit his profile fields .

I searched for tutorials , these are the really good ones which I am learning from them,
and I was amazed how easy MySQL is and why I hadnt started learning it before !

• Begginers guide to MySQL
• MySQL cheat sheet
• Brain Bell's Tutorial
• 18 tips on managing tables and data rows with PHP scripts
• Learn to make a "php login script with remember me feature"
• Free webmaster help's Tutorial

if you also know good tutorial , please comment it so me and others use it !