How do I view my usage stats?

Step 1 - Login to your cPanel account.
Step 2 - On the left hand side of the website (depending on which style you have selected) click 'Statistics' (second icon down).
Step 3 - You can see vital statistics for your hosting account such as bandwidth, disk usage and more. 
Step 4 - If you want to see more information for a specific area, click on the relevant link.