Web designing is a task that requires a set of skills, a great gift of creativity and the ability to grasp what your client needs. Getting a certification is just a start in your career as a web designer. There are still a lot of things that you will need to do to become proficient in designing websites.
Start with Easy Tasks
Design simple yet elegant websites. Do not start with complicated designs that will involve action scripts and a lot of flashy graphics. Focus first on designing a website that is easy and pleasant to anyone who will see it. Take easy web design tasks first and start gaining experience. This will help you master the basics, which are very helpful in the long run.
A web design contest is not a rare event. There are several of these posted online. Treat this as a learning experience and do not aim to win. You will usually be given a theme in a web design contest and you will design a website base on that theme. This will help you improve your creativity forcing your mind to think of great designs that will perfectly express the theme of the contest.
Web designing also have coding conventions and syntaxes that are changing as time goes by. Keep yourself updated with the recommended syntaxes and coding conventions and learn to forget about the ones that are now obsolete or deprecated. This will allow you to have a modern standard to follow when you design websites.