I was hoping that it would produce a bit of a nest-egg for me in the future as I was a homemaker for years & missed out on pension/savings for my "golden years". .
I missed this bit of the original post, before you pay off the mortgage, can you see from social welfare in Sligo/Donegal if you can contribute now to your missing PRSI payments. You should check up what entitlements you have and whether a lump sum would be allowed to increase these entitlements. And I believe if you had children, some of your PRSI contributions are nowadaws counted as being earned.