All the above is sound advice - you do well to heed it. More importantly it is your life and, I guess, you believe God has given you your life. Use the time out of the organization to see exactly what he is expecting from you - NOT what men think he is expecting from you. Half the time they're protecting their own position, not that of the individual or the congregation. The GB have given them this tool of shunning to ostensibly discipline but instead, they wield it as a weapon over the remainder of the flock to hold them in fear.
It has struck me lately that I was told it is good to have fear, fear of displeasing Jehovah! Never once did I consider how twisted that has become.... think about!
My father when he was alive (an elder) ALWAYS said nobody should ever be disfellowshipped for wrongdoing. If they are repentant enough they won't be - as long as the JC is not corrupt, but that's another story. Anyway, how does a spirit appointed committee of men have corrupt members? A contradiction of Jehovah's justice.
I followed those links and spotted something in Paul's writings I'd not spotted before.... "Quit mixing in company with anyone called a brother that is a fornicator or a greedy person [or guilty of another gross sin], . . . not even eating with such a man."
Suddenly, I see a get out in their own reasoning..... "anyone called a brother". Disfellowshipping from within the GB's own rules removes the title of brother so, Paul's admonition no longer has substance. Especially does this apply to a person who has disassociated his or herself!
One thing I'd like to mention. I was 'in' for 35 years and always had difficulty with DF'ing. It has taken my time away to CLEARLY see what is/was going on. Please use your time to study, objectively, the things you've been taught and you have learned. You're a thinking person and are aware of your situation within your own, living context. It is that which will indicate to you the right way to go. Indeed, it is only you that really knows what IS right for you.
Have peace but first of all forgive yourself for the guilt that is being heaped on you. Recognise where it comes from - yourself, god or a bunch of rule driven men. Goodness, that's what the Pharisees were!
Hotspur
edit - put in the missing words!