Iceland seem to do well out of EU and

Iceland is a member of the European Free Trade Association (EFTA), a grouping of four non-EU European countries, and is also part of the European Economic Area (EEA).
So why can't the Uk have similar agreements ?
After all we buy more from Europe than we sell ..

Its just fear that's stopping us leaving, same thing that's preventing us fixing the housing bubble mess, or the bankers grip