going to Spain is cool and all, but to move there and get jobs seems like a waste of time . I'm no expert, but I spent 2 months in Spain living with a family and taking spanish this summer, and have lived out of the US for 3 years ,just to clarify that I am completely ignorant.
You want to leave Texas, fine, but why move out of country when you are ill prepared to do so? The whole thing about moving to Europe, while a great fantasy, is in reality just that, reality. No matter where you go, be it Britain, Spain, Oklahoma, etc, once the novelty wears off, you are back where you started. Same $h!t, different address. Except more difficult with a language barrier.
If you are going for practical purposes, learn spanish then by all means go.
If you are going because it seems like an interesting thing to do, then buy a house in the US and take a long vacation there.
That being said, I forget where exactly, but there is a 'village' if you will, where the whole place is a kind of haven for wealthier/ business Spanish people to practice English. They hire people who know no Spanish and all they do is interact with the spaniards. May be something to consider.