Activity for Jessica

Dumb question probably but how do I put my picture for my avatar I selected one in the beginning and I can see it but when I post topics doesn't pop up just the double rings lol help

Hi ! I'm new to all this lol I just got in engaged in May and I already have tons of people asking me when's the date and I have no clue I'm aiming for May of 2018 is it normal not knowing yet I'm still trying to enjoy my engagement