I started out my music career playing Hawiiain music. For over three years, age 8 to 12. Nothing but.
A man who lived down the street from me wanted me to set in on some country songs with his band. I did.
Looking back those forty some years ago, I know they had a good laugh. Every country song I played sounded like it came from the Isands, with skirts included.
I really had a hard time cracking the mold I was in. That old man gave me a stack of records to listen to and a few words, "Don't listen to the stuff you don't wanna play for a while.
With in a month I was Waltzing through Texas with the Yellow Rose.
If your a rocker, and wanting to make the switch to blues or jazz, submerge yourself in that music. Listen over and over to the songs you like. I've played almost nothing but blues for over thirty years now, with a few exceptions, and when I made the switch from Hard Rock, I followed that old mans advice.
Listen to the licks, and turnarounds, they aren't anymore difficult than rock. Find a Blues scale and learn it, it's very simular to the pentatonic, very.
Check out the tab sites for some song you've got an interest in.
Hold your nose, and take the plunge. Just like learning a forgein language, total emersion.
Some lessons may help too. Lots of good blues teachers around.
Good luck.
Slidin' on.