What approaches are there to learn design, coming from a development background?

I'm a web developer trying to become a web designer. But seems that I'm lost in the world of design.

But I don't know what to do, and from where should I start. I'm even unable to find good resources (of course, there are tons of resources out there, but I'm talking about good resources for web-design specifically)

I can tell if a design is good or not, I can offer suggestions to improve the layout or UX. But I cannot pick a color scheme, I cannot create a layout, and I am terrible at generating graphics.

As a developer, how can I pickup design?