Changing things is difficult

I came to TI as a right sided breather with a head lift when breathing. I corrected this but it led to more problems as I was doing something weird and kind of twisting it back into a lower position. Neck ache for 6 months followed.
I became a swimmer who favoured breathing to the left but have continued to work on my right sided breathing.  A combination of under rotation of body onto left "rail", simply twisting my neck too much all seemed to be the cause leading to a disrupted two beat kick timing.  General confusion.
I have been searching for reasons and causes and trying to figure why one side was better than the other.
Today I had a breakthrough. I stopped analysing and looking for reasons and just resolved to breathe deeper with one eye in the water and believe in my bow wave and the pocket of air behind it - to keep it simple and just do it.  Just change it.  Just do it.
I dropped 2 strokes and my left sided breathing immediately cooperated.  My neck does not ache.
How did I do it?  I made sure my head was in the correct position before I even started thinking about turning to breathe first.
Back to basics!
This has taken me ten months.