Should I learn wordpress now or save for later?

So i've been working 6-8 hours a day trying to get myself up to speed as fast as I can on the front end development tracks and through You-Tube i've found that people with little coding experience are making money freelancing through worksites such as Upwork. When is the best time in peoples experience to start learning this CMS format. Do I need to complete all the front end first along with some php and photoshop or is Wordpress something I can skip to now and whilst making money like described above, and whilst earning money continue along the front end tracks here at treehouse? I'm Asking because in time i would like to be either a freelancer or get myself into a company front end but i want to produce high quality work what ever the outcome (i.e. i don't want to start Wordpress earlier than i should and produce something that i shouldn't be taking money for but if it is something i can start doing now to support my learning then I may as well jump on the bandwagon...) so any guidance from some more experienced coders out there would be highly appreciated, thanks in advance!