I have decided to start learning Vietnamese.
This is mainly for pragmatic reasons. My study of Thai was precipitated by a visit to Thailand. I continued studying basically for the hell of it- I enjoyed it. But Vermont is a long ways from Thailand, and I don't currently have the means to return there. Basically, my Thai is useless for the time being. After a long period of consideration, I've decided to take a stab at Vietnamese. I like Vermont, and Vietnamese is spoken in my area by a considerable minority. It's simply more practical in the short term than Thai. If I have to "force" myself to study a 2nd language, it is the obvious choice. There will be more opportunity in learning it and more opportunity for using it. Also, it's geographically close to Thai, and shares many traits, like being tonal and analytic/isolating. I should have some familiarity with most of the grammatical concepts, although they are used differently.
I'm going to try and approach Vietnamese differently from Thai. Perhaps I can learn from my mistakes? I'm going to try and emphasize the spoken language. With Thai, my reading far outstrips my listening. I don't want to repeat this imbalance. I also will look in to formal instruction, and adopt a more structured (and more social) study regimen.
I plan to continue my Thai study as a serious hobby (this blog will still be titled ฝรั่งงง) but I'm going to attempt, for the time being, to put the majority of my effort into tiếng Việt.