Each person has a different light bulb moment. Mine was after he left once, came back for 7 months and threatened to leave numerous time during that 7 month visit. When he spoke to my father is a very nasty and disrespectful way and threatened to leave for the 7th time, that was it for me. Do I have any regret from dropping the rope and leaving it on the ground. Heck no.
Trust me, you will know when you've had enough and need to drop that rope completely.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.