Heaven - I think you've hit the nail on the head.
'You will never be happy adopting someone else's definition of your life.'
My mother has never been what I would call a happy person and maybe that is her nature. But I'm sure the pressures of JW life and the high expectations they have doesn't help. Maybe if she had lived a more carefree life without all the restrictions, she could have found ways of coping with her unhappiness.
Its the high expectations they have of each other as well. When they see others in the congregation not showing Godly qualities, they get stumbled or feel let down. They care too much about how other people lead their lives. About others personality failings.
I would say that the majority of worldlies couldn't care less how others live their lives. If I don't like a person, I walk away and don't keep them in my life. Its no big deal. But the witnesses are stuck associating with people they wouldn't normally associate with.
And to think they will be stuck with each other forever in a paradise earth. At least they will have a thousand years to reach perfection. Maybe at the end of that thousand years they will like each other. If they've not killed each other in the mean time.