Okay, now you know how to finger your open chords and change between any of them in beat, right? Great! Now learn a bunch of songs using them to learn how chord progressions work.
I totally agree with Mister Zeus as far as getting an instructor.
If you don't want to go to a teacher I really, really,
really recommend you check out Stefan Grossman's stuff if you want to learn how to play acoustic blues. A great place to start is his 'Fingerpicking Guitar Techniques', available as either a DVD or book/CD set. Personally I like the book/CD format because he goes really slowly, one bar or phrase at a time - "Put your index finger on the first string at the 3rd fret, now your middle finger on the second string at the first fret.." etc. He makes it as easy as possible.
Others really like the DVD format since they can see what the instructor is doing.
One thing cool about learning this way is that you can take it at your own pace. You can go back to any part of the lesson a gazillion times if you need to and the instructor never gets pissed.
You've worked really hard to get your skills to where they are today. Now is the time to take advantage of all the really great instruction available on line and in CD and DVD form. Or from a live teacher.
I can only speak for myself, but - after 40+ years of playing guitar - if I could do it all over again I would definitely get all the instruction I could. I spent years and years figuring out how things really worked and wasted a lot of time when I could have had the answers to my questions if I had just known who to ask, or went to the trouble to find someone to show me.
Nowadays beginners and intermediate players have fabulous opportunities to learn from world-class players in whatever style or genre interests them.
Daza, if you really want to learn how to play acoustic blues
the right way do yourself a favor and and sashay over to
www.guitarvideos.com and spend some time getting familiar with the stuff available. You won't regret it.
And, no, I don't work for Grossman. He sure has worked for me....
Rev George