My dumb ahh asked to be added to a friend list without puting my friend code [1605-8926-7350]

can some one add me pretty pleaseeeee

It took me 6 years to realize i had Luma on my 3DS, how did i realized? i tried to install it and the installer (ig) sayd smth like "already installed" idk, then i checked and turns out, i had the thing SO outdated. Afterwards i filled my 3DS with exploit slop and Pretendo ¦)