It's obvious!

It's obvious I have no clue what I am doing on here! lol. I don't know how to place other people's blogs on my page, don't know how to increase the size of my pictures (no matter what I click when I'm posting them), don't know why my second post has the link to each picture! WOW! I may have to enlist the help of my 11 year old! Be patient, I'm trying to figure it out!