What should the questioner do about people bothering her because she wears the Saudi abaya to limit drawing attention to herself, given her desire not to change her wearing of the Saudi abaya which does not show the shoulders?

It is better for you to wear the Moroccan dress if it is modest and loose, to conform to the practices of righteous women in your country, and to avoid attracting attention or harm. You can wear a headscarf (khimar) that falls over your shoulders, thereby ensuring they are covered.