You need to create new user. You forgot your MySQL root password. How to reset?
Step 1: /etc/init.d/mysql stop
Step 2: mysqld_safe --skip-grant-tables &
Step 3: mysql -u root
use mysql
update user set password=PASSWORD("newpass") where User='root';
flush privileges;
quit
Step 4: /etc/init.d/mysql stop
Step 5: /etc/init.d/mysql start