For about 15$ you could get started with fair web hosting and a domain name.
I couldn't tell you how safe and reliable affiliate marketing is because even though I have recently made sales I have not received payment yet.
But it definitely is not easy. You would make more money the first few months working at McDonalds.
2k a day is a great goal But I'd be aiming for about 50$-100$ a day to start out.
and even that is hard to accomplish.