I find I can do most such works better than (average) professionals, but it takes a lot of time to learn, prepare, execute (+ sometimes re-execute) and clean. It all depends on when you are satisfied with the result.
For UK natives it's actually three steps:
"sheetrock" == drywall == Plasterboard
I'm not certain whether the water-resistant, mold-resistant variety typically hung behind tiles in bathrooms is ever referred to as "wetwall" or if they still call it "drywall".
Nor am I aware of whether anyone calls the foil-backed, glass-reinforced, fire-resistant variety "firewall" instead of "drywall".
I wouldn't be surprised if obsolete and inapplicable names still attach to items with the same function. If we ever move to polyethylene film panels sandwiched with phase-change material for our walls, it might still be called "plasterboard" somewhere.