Epiphone have been part of Gibson since 1957. Not sure but I think that even a lot of the Gibson branded guitars are actually made under contract in Japan and other Far Eastern areas just like the Fender and Gretsch brands. With Gretsch it's only their super expensive 'Custom Shop' guitars that are made in the US. To be honest you will find little real difference in quality between an Epiphone and a Gibson.
Teaching yourself guitar in a couple of months definitely ain't an easy challenge although, as a long-time guitar player I have to say that being really good on guitar is much easier than being even average on the Trumpet! Being able to play Fiddle, Guitar, Banjo, Bagpipes, Flute, Clarinet, a little Piano, Melodion and Saxophone I have to say that the trumpet has to be the hardest instrument I have ever learned to play and I am nowhere near Satchmo territory on it.