Buying a House w/ No Job

[spyu]

I make a pretty modest living gambling on the side(About $180k/yr). But, this is the first year I have done it w/o working at a real job. I have been renting the last few years, but am now looking to buy a home. Is it possible to get a mortagage w/o a job? I was also curious as to how others who have done this for many years have handled their taxes. How are you required to report your earnings? Obviously I cannot report nothing because if I ever get audited they'll wonder how the hell I've paid all my bills and for all my belongings.