Have you looked over the basics in the stickied thread? If not, this section will be helpful
(144856.30).
After that it comes down to what preference you have. Do you want to train guards, forwards, bigs, etc.? Once you know that, you should be ready to figure out a training plan. That will also allow other users to give you better advice.
I recently came back to BB and went through the same steps. There's been a lot of stuff I would have completely missed had other users not pointed me in a better direction.