Wow. My problems are all solved today morning. I am so happy! =)
All the SQL problems are solved, and my Edit Profile Page is done already. When you click on edit profile, the form appears with all the default values that you have in the database. After that, you will enter new information to change the values. Then the PHP script will update the database! Haha. =)
I’m doing the add students profile page now, where you add students profile such as name, educational level, subjects blabla so that people can search! =)
Hopefully it all turns out well.