my watch face is upside down

Settings/general/orientation and change the orientation of your watch face here.

Are the settings on wich wrist you are wearing it good? If so, change to another watch face and then change back. This should work

Changing the orientation setting from left to right didn't work. The face is still upside down.

You have to change 2 settings;

Wrist-left or right=left.

and digital crown -left or right=right.