This is an asinine response, especially for the top comment. Of course the only way to learn is by practicing, but the right guidance can enhance the amount of learning you get out of each hour practicing. It's like asking for a violin teacher recommendation -- there are good and bad resources for web design out there.

By this I mean learn by doing. It is generally the best way.

Look at examples/sites that make you say “wow” and try to disseminate them and rebuild them. Always challenge yourself to do something just outside your current ability. When you start building (anything) you will usually suck. After n builds you will suck less. After 2n builds you be ok. After 3n builds you will be fairly good ...and so on.

Take the teachings/examples/tips you come across in the books/blogs/youtube and apply them to yourself and your work. Build a wiki (or any document) with what you find useful and tailor it to your learning. In due time, with persistence, you will find you start to get better/good.

Practice and lookout at designers' portfolios for more insights, inspirations and try thinking and doing what they did by yourself. soon your bag of tricks will be full of nice tricks & skills