Creating websites through dreamweaver or any other page-per-page design program unfortunately is becoming obsolete. This is due to CMS (Content Management Systems) as they allow webpages to be edited and updated online, and instantly; rather than re-editing every page then uploading them back to the server.
The current frontrunners for CMS programs are WordPress and Joomla. Learning to use and design with CMS is incredibly valuable, but don’t disregard your dreamweaver or html editing skills as these will come in handy while designing with CMS also.
I highly recommend that if you’re interested in web deisgn, to start reading up on WordPress/Joomla and watching online tutorials, see how you like it and give it a go. Once you get the hang of it and start to master it your designing life will become much easier