Just throwing something out there, I could be way off:
Are you too in your own head? By this I mean you think about the situation too much without actually being present in the moment. It sounds like you were disconnected from people way before you were harsh.
I'm not sure if I'm right, but it could be the focus of your recent trials and discoveries. I love that you are doing it, but too much self focus and ponderings can lead you to get too far inside your own head and think too much. That would leave you disconnected from other people if you did that too often.
Perhaps it's time to give yourself a thinking break and put yourself back into touch in why you started personal development in the first place. It may have been to be a better person, but there would have been a reason you wanted to be a better person.
And as always Rose, Thank you so much for sharing of yourself so openly.
*lots of super hugs*