Muscle Imbalance - Shoulders

Question:

I have developed a muscle imbalance in my shoulders. My lats are wide and rear delts are big, which forces my shoulders forward; therefore, I think my traps and my rhomboids are weak. I experience pain in my right front shoulder when I do presses. I realized I had the imbalance not too long ago, and now I consciously retract and depress my shoulders and periodically stretch my lats and chest and when I do exercises. Can you give me some info on whether I’m doing anything wrong to correct the imbalance or how long it will take to get better? I also wonder if I have to get my traps and rhomboids bigger to hold them back, or does my body just have to adapt to the new position because right now I’m in a caloric diet. I’m wondering if I have to eat more calories to build the traps and rhomboids to correct the imbalance, or will my body adapt over time to the new position?

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