Hi jenganic. Welcome to the forums.
Yes, learning a CMS is a good idea. But another important question is whether you are going to learn the more fundamental aspects of web design, such as HTML (the basic underlying code of a website) and CSS (the means of styling web pages). With something like WordPress, which has a lot of themes (that is, pre-designed templates) available, you can sort of get away without knowing these, but it's better to know something about them.
There are lots of other CMSes out there that we could recommend, but it would help to know what your goals are, because it's not worth recommended a lot of alternatives to WP if you aren't going to get into coding to some extent.