Welcome Reesey!
The white factor is declining. ABC's (and CBC's) are increasing in number. Seems a native speaker who looks like them gives them inspiration. There are a number of such folk here in Suzhou, for example.
And remember: there are 300 MILLION people studying Chinese here, and, what, tens of thousands of laowai to teach them. The supply is gradually increasing, but is being absorbed by the market; more schools are opening all the time, and most of them are short of us.
Yes if you were pasty, blonde and blue eyed, it would be a piece of cake. But as it is you should be fine. Just make sure to court more than one outfit at a time- you know they're contacting as many as possible. That's how the business goes.