I'm going to be honest and sound like a jerk. But here's what you need to work on first. The basics.
-Use manual mode
-Manually select your AF points
-Fix your ISO. Why is it constantly at ISO800?
Watch John Greengo's Fundamentals of Digital Photography.
He has a free online web class coming up in February that you can stream. Although, his 2012 version is very very very good for beginners.
After your first 10,000 shots in Manual mode, you will recognize the difference in skill.
You will thank me later.