open the Welcome page in your browser , then click the phpMyAdmin link at the top of the screen.
To create a database, click Databases in the top navbar.
On the screen that appears, you need to enter the database name , choose your database connection collation from the dropdown box ,then click Create.
your new database will appear in the list on the left.
As an alternative option you can use MYSQL workbench instead of Phpmyadmin to connect to database. You have to download and install it on your computer first.