I must be wierd

when I first started shooting I shot with non dominant eye shuttered with a gismo device. I use reading glasses for pc work "autoCAD" allday. My problem is people say where do I line the string. The answer is I don,nt I can,nt see my string when on full draw my string is centered on my chinn with the sight on the gold. I now shoot with both eyes open. Does anyone else have this problem or is it just me.:christmas