I started out in the same way with my learning on Guitar Tricks. In the Blues Songs link posted by Christopher there is a BB King song called "Rock Me Baby". Although I think it is rated at 3 guitar level, I found it more doable than the 2 Guitar level rated "Baby Please Don't Go". The main reason was the speed, I just couldn't handle the beats per minute of "Baby Please Don't Go".
'Rock Me Baby" has a nice little solo in it with some nice little techniques. Later on I re-visited "Baby Please Don't Go", and found I could handle it.
I do note that they have added a bunch of songs "made easy" at level 2, I haven't played those so I don't know much about them. Perhaps those new level 2 songs will be just right for you.
Well, that was my experience anyway. I wish you every success in the Blues!!!