We all speak English, but it's not the same. Comedians take what everybody else sees, and depending on their style, say what others wouldn't say, or embellish it. Today it's a real challenge with the Internet. A successful routine is 50 percent comedian and 50 percent audience. It's highly dependent on the relationship between the audience and the comedian.
Comedy sounds like fun work.
It is work. Much of it is developing and practicing the skills. A good portion of what a comedian does is planned, but a comedian is also good at improvising by having material prepared to use if it is needed. Comedy is a tough business and it's a tough job. I can work at a pace that I feel is comfortable and do it enough to keep my skills honed.