GC through sister will take more longer. It takes about 5 yrs to get GC through employer on EB3. For worst case go to grad school, you can even do you GC on EB2 if you have masters and employer is willing to do GC it takes only about 1 yr so doing Master is not a bad idea for ur future. Good luck with you job search, BTW what is your area (computer , business??) Saan-dai