My awakening was through a number of events over a period of time.
My depression was making meeting attendance harder and harder so missing meetings and no longer getting the constant indoctrination probable allowed me to start thinking negatively about the org and my bros and sisters "imperfections"
Being "counselled" by an elder not to help the Africans that washed up on our beaches by giving them money, clothes or toys for their children (I was living in Fuerteventura at the time) but to "only offer them Bible studies in case they come into the truth for the wrong reasons" so we went after dark and did it in secret and that seemed so wrong to me.
Shortly after I was really busy just having bought the company I worked for and working really hard but meetings were not the same any more after discovering an elder while I had been ill had instructed the congregation to "leave me alone for a bit as I had gone off the rails" felt a tad unloving.
Then I had a masked man come thru my bedroom window and attack me and we fled back to UK. I found the KH and we went to the memorial and I told my bros and sisters what had happened and where we were staying. That was 2009. No-one came, called or messaged and I am still waiting.
For me injustice and missing meetings got me out but it took a whole year of searching before I started to doubt it was "the truth" was the problem not me.
Reading Crisis of Conscience by Ray Franz was what finally freed me.