um so you don't think in a past life you could have been a little boy? A life review happens 2 times. Once before you choose a body when you see what life could be like if you chose these lessons in that body. 2. It happens after we die and ascend to the great hall to see our life in full holographic detail.
In my last life I was a sailor named Bernard in Bresse France in 1736. I'm female in this life, male in that one, male in a few others too.