If you're interested in public group classes, look for some new class dates in spring. Meanwhile, I'm looking into Skype as a teaching medium. And, as always, I'm happy to talk about setting up a series of classes for you.
Since you've come to this site, chances are good that you are not a native-speaker of the very special -- and confusing -- brand of English that we speak here in North America. Don't worry. Houston is blessed with talent, and a lot of it isn't native-born. The folks in our town sometimes complain about new accents; but they complain about other North American accents, too, so don't take their comments too seriously. We ask you where you're from, but we probably don't mean to be rude. We ask each other that question, too.
If you didn't come to North America as a very young person, you'll probably never sound as if you were born here; but that's OK. We want to be an international city, and we'll get used to new accents. But if you think your efforts at communication could be easier; if the telephone is often a problem; if the natives sometimes look at you with blank expressions, maybe I know a few things that will help.