Hello viveknayyar007. I am resetting my PC again so I can create a bootable USB, to see if that works. No, I have not been able to access safe mode. Also, though I only installed Windows 10 3 days ago, I do not have the option to rollback to Windows 8.1, which is crazy! Thanks.
UPDATE: It appears, with three successful restarts, that the bootable installation from USB has worked. Thank you so freaking much!!