Ok! ok! Calm down! First you find an image you want to post, make sure it's the right size, go here:
http://www134.lunapic.com/editor/ scroll down to the bottom, click upload now, select the image you want, (at this point make sure it's the size you want) click open, and you should see a preview of what your picture will look like when you post it.
Click save to imgur code, copy the direct URL, and when you want to post it, paste the URL between these: .[img].[/img] (without the periods, those are for example.) Try below this post
