Hi RodgerDodger45,
Thanks for the update and feedback … and the pictures … I appreciate it 
Yes … walking on the mattress can help to open up some of the windows in the foam and help it to break in a little faster and lose some of its initial “false” firmness. There are also a few other things that can also affect the firmness of a mattress in post #2 here which may also be helpful (particularly making sure that there is nothing over the mattress that could be reducing the amount you sink into the foam).
The initial break in and adjustment period with a new mattress can take up to about 90 days or so as the cover stretches a little and the foams lose some of their initial firmness but in most cases it’s well under 30 days.
Phoenix