So, when I cook in China, I use a simple wok that cost about $5 at the local supermarket. Maybe your local Asian market has this kind… If not, just find something black that is curved all the way down to the center/middle. There shouldn’t be any wide-flatness to it. It shouldn’t look like a big “V” either… I’ll upload a photo of a common wok later.
There is no science to using a wok. It’s just like another pan in your kitchen. Use it to cook various simple recipes in this blog and find new ways to cook foods you already eat a lot (like eggs). Get yourself a metal spatula too. “Teflon” isn’t really important either. It’s an expensive alternative that takes 1 minute off of clean-up time, but won’t make food taste any better.
Remember: Many of the “poorest” people in the world are eating healthier than many of the “richest” people in the world.