If you can organise a second income stream, that's what I'd recommend. Couldn't agree more with Andrew above - it's all down to marketing, and if you can plough most of your CC income into marketing, then within a few years you should be able to make a decent living.
Takings are not the same as earnings - people think CC'ing is great because you can turn over £400 a day quite easily, but in early days half that is needed to keep the business alive.