Computer SOS from MamaJD

HELP! I believe my children were on the computer and now we have problems. My computer programs are extremely magnified. I am not able to get it to return to my normal view. I have gone through the display settings and appearances stuff all to no avail. When I restarted my computer, all I did was save these d*** settings. If I change the magnification in my lower right corner it just shrinks the text and not the jumbotron theme that seems to be occurring. Any ideas of what to do or in the alternative, who to call?

MamaJD

DFO: Can any of you computer whizzes help MamaJD?