How much experience do you actually need to work on a paid set?

I'm a small time editor at a TV station but I'm losing my job due to funding cuts. Where I work I had to help setup some shoots, but I've never really worked on a real set. I've mic'd people up, I know where the levels should hit, and I know good sound from bad sound. But i've never actually been the "sound guy."

Is it ridiculous to think I could watch some youtube videos on how to hold a boom, buy some prosumer gear, walk on a set, jam sync, mic people up, watch the levels, and get the job done? Or should I spend some time PA'ing and assisting the some sound departments before jumping all in on sound?