As far as the chastisement leading into the Triumph of Our Lady's Immaculate Heart I believe it started long ago, like decades ago and is just continuing to get worse and will continue to get worse un till enough people are praying the rosary as Sister Lucy was told by Our Lady. When some of you say that the spiritual part has started with Vatican II but the physical hasn't started yet, Well I disagree with the second part of that statement. Here in the US, true, we haven't experienced much of the physical part yet. But if you look at other parts of the world, people fleeing with only the clothes on their back, watching their children and loved ones being decapitated and burned alive, sold into slavery, starving, freezing to death and so on, I would say the physical part has been here for a long time as well. For those people , it really can't get worse and they can't hang on any longer. When Our Lady came, she was speaking to the world as a whole, not just the US or certain parts. We are full blown into a chastisement both spiritual and physical now! As far as the period of peace PROMISED by Our Lady, the length of it I believe will be much longer the a decade or two. If you look up Venerable Father Bartholomew Holzhauser, he has a pretty interesting take on the periods of the church and where we are now. He believes we are very close to the sixth church age, where we experience the great restoration of the church and the peace period promised by Our Lady. He believes this peace period will last over 300 years, then comes the 7th and last period of the church and the anti christ.
Obviously were not meant to know when this will all happen, but I do believe we are given signs to tell us that we are at least getting close and the signs are all over the place!!!!!! As most have said, try and keep your soul clean and pleasing to God and make reasonable physical preparations, God and Our Lady will take care of the rest.