Dial back your lifestyle as much as you can. Every dollar you don’t spend today you can put to your house.
Choose where you live with care. If Boro Park is very expensive don’t live there, think about somewhere cheaper (Though most of greater NY is pretty expensive). For $200,000 you will not be able to get much of anything in New York, but you probably can get a great house in Say Pittsburg or St Louis.
Also get out of debt, drive a used car and generally live like there is no such thing as a bank loan!