For someone who is phenotypically male, front to back or back to front doesn’t matter, as long as you do a reasonable job with it.
For someone who is phenotypically female, front to back is proper hygiene.
I am not sure if that’s the kind of answer you are looking for, but seeing as you titled it in all caps with three exclamation marks, it seems reasonable to me to give you a proper reply.
Hope you and your family do well, and I hope that your back pain gets better.