Not sure where you are, but here in the south of England the sweetcorn season seems to be pretty well over. I don't seem to have much luck with it, only ever getting a reasonable crop once, so have given up with it.
I have always had great results and plenty whenever i grow sweetcorn. I have usually chosen shorter earlier varieties - which i have started indoors and planted out under cloches. I usually grow squashes underneath.
If you haven't got anything yet I'd give up and compost what you have got... It happens sometimes with most crops .