I can see that you did figure it out as it's your avatar. Many selections are available under your profile... way up at the top right of the screen/page, if you hover the mouse over your screen name a drop down menu will appear with two columns of selections you can check out. Also to add pictures in posts, you can now "drag & drop" a picture into the edit field where you're typing. You can also right click a picture and select copy, then move the cursor to where you want to put it in your editor and right click and select paste. You may also want to add at least a general location to your profile so it will show under your screen name. If you ask for or offer advice, it will be very important to know your location as things are very different depending on locale... Without it being there, folks are going to have to ask.