I've just started two weeks ago, and so far the response has been satisfactory. Whether it will last in the long run is to be seen, but if you find your niche,

I've just started two weeks ago, and so far the response has been satisfactory. Whether it will last in the long run is to be seen, but if you find your niche, with enough persistence and a focus on quality, I don't see why it would be too late to start creating. Addendum: doing it for the money is perhaps the wrong reason. It's likely that the network of people you'll get as a result will be even more valuable. Plus, you have to enjoy doing it, otherwise it'll be just like any other job.