I would recommend shooting some blind bale. Take the sight off the bow and shoot from 5-10 feet. Concentrate on breaking the shot as a surpise. Dont worry about where the arrows are going - just focus on form.

Also, make sure you are not shooting too much weight because this is a primary contributing factor to TP. 60 lbs is more than adequate with today's efficient bows and carbon arrows. I shot 60 lbs last year and still achieved pass-thru's - with mechanical's. Even if you must drop below 60 lbs, you're still better off than being over-bowed.

You might also consider seeing a doc about some rehab exercises to strengthen your shoulder.