Too much PT pain

I have been going to PT 2xwk for the past 2 months.  I have made progress but my concern is that at least the past month, my shoulder is almost always sore with any movement.  I know PT does cause soreness but this seems too much and sometimes it is so sore it is hard to exercise at home even though I am very faithfully doing it in spite of the pain.

They have started me with resistance - 1 pound weights - but I find the soreness is so much worse and I am afraid damage is being done and perhaps even a re-tear.  The surgeon has asked the therapist, a very young woman, to be less aggressive but she doesn't seem to be doing that.

I have even been thinking of stopping therapy and doing the exercises at home by myself.  I am very self-disciplined and self-motivated and know I could do that if I have some guidelines as to which exercises to build on the ones I am doing now.  I would rather take a year to do this and not have the constant discomfort whenever I move my arm.  I would like comments on this plan - thanks.