Firstly the so called certifications are questionable. The process does teach you valuable stuff, but it's not clear to me that the fact that one has a certification makes them any more employable. And vice versa, the fact that someone does not have a certification also does not suddenly classify them as non-desirable for employment. But one thing is for sure, the certifications cost money. Therefore my take on it is to consider it, as you are, but be wary of the worth of it before you launch ahead spending money. If it is a worthwhile thing, companies would sponsor it.
I'd learn both Linux and Windows administration. You'll find that the servers will have Linux, but the workstations will have Windows. Other than the learning which you are already performing, seek out jobs that fit for your experience level. And continue to learn so you can grow in your position.
Finally, search these forums for similar questions. Because your's isn't the first.
Last edited by rtmistler; 10-16-2015 at 03:30 PM.