I think it's a good start. You can say with confidence that you know those licks, and that's not nothing.
I think the metronome you should keep in your pocket until you get more advanced and have some specific time issues to deal with, if any.
Playing along with records, or, obviously, the best is with a real drummer and maybe some others, should keep you on track. Since that's not always possible, especially if you're younger or in a "non-blues-centric" area, there's a lot you can still do with just solo blues piano. And in a legitimate style, the way someone like Otis Spann did on the Folkways recordings, or Dr. John, or whoever.
I'd work on that -- know how the masters played solo blues, and rely on your own sense of time. When you kill the groove (and you will, just like everyone does eventually), move onto another rhythmic style and keep playing. By that I mean, there are a whole bunch of LH styles/grooves/rhythms you can go over, so if you lose the feel or drop more than a few beats playing "She Caught the Kady," you can go over and start another groove.
If I may, just stick to one key while you're starting out. A regular key, like Bb or A or D, or whatever. You'll want to be able to play in all keys, but as long as you're not cheating with the transpose button, you've got plenty of time.