Starting over... What would you recommend?

I tore my rotator cuff in 2 places 2 years ago in my shooting arm and had to have the surgery plus rehab. 6 months after surgery, I shot a few rounds and it left me hurting for a few days so I talked to my doctor. He recommended leaving off all practicing for a full year and let me heal completely then work back into it. Well, it's March, the shoulder feels great and I've got a big itch to go workout and shake off a lot of rust.

I figure this is my chance to start over and practice without the bad habits like cross shooting.... I'm right handed but would aim out of my left eye.(Long story but I got my right eye fixed and it's as strong as the left eye now.)

Soooo.... what recommendations so you have for someone re-learning? My ego is out of the picture so I can go as basic as needed.

Hit me, I need it! I've got 2 new handguns and 3 rifles that need breaking in!