Twitter isn’t actually that complicated. I think a big misunderstanding that new users have is expecting it to act like Facebook.
You can add pictures but it’s hardly worth the time. They don’t show up like facebook so it’s not like your creative photo taking genius is going to draw in readers. If you say something cute and the picture adds to your statement then [maybe] your followers won’t find it annoying.
You can ‘follow’ someone but there’s no guarantee they will follow you back and generally speaking anyone can follow anyone. There isn’t any ‘permission’ that goes into using twitter. It’s pretty much do as you please.
There is, without a doubt, a wrong way to use Twitter.