It’s good idea to keep studying and learning, because there’s a lot to learn. I like to look at sites I admire and study how they were done, by using Inspect Element in Chrome etc.
A good way to go about building a site is to start with the cotent. Work out what needs to be said, then work out a logical arrangement for that content—whether it be one page or multiple pages. As you organize that content logically, a layout starts to appear. Use that as the basis for your layout, then gradually add some decoration to finish it off.
If you don’t have any further projects to work on, then perhaps seu up a portfolio of individual pages, where you experiment with various kinds of design.
The most important thing for you at this stage is to actually create a site. It doesn’t have to be a real project for a client. Just think of something that might be moderately useful or interesting for you and your friends, and then start building the site. Experiment with the different techniques you have learned, and get people to evaluate the results for you.
As Ralph says, you also need to keep studying. But your studies will be more meaningful if you have an actual site (or two) where you can put your learning into practice.
If you have no work currently then build a portfolio of template type sites that you can use as you need them, for example, ecommerce, cms, blog, business sites. you may find you have a particular talent for custom Facebook pages. I find it easrier if I have a goal or better still a brief to work to. Maybe head over to http://99designs.co.uk/ and browse the website contests to get some ideas.
Thanks everyone for the help and advice. Much appreciated. I have decided to learn the process of web design, each step so that I can learn how to design from the start as if I had a client.
I’m then going to build my own portfolio website so I have it ready and add any sites I build from there.