Your root password is lost and gone forever.
Temporary video version without sound.[youtube][/youtube]
Your sudo account has been blocked by an incompetent SA(System Administrator).
This according to reports is often on the test. It takes 5 minutes to fix.
Reboot your system and intervene on the kernel prompt.
Press e to edit go down to the linux16 line and edit.
Erase rhgb quiet and enter rd.break
Ctrl-X to boot
mount -o rw,remount /sysroot/
You are done.