Grateful that I now got the grasp on how to let go of negative feelings from the past. via /r/gratitude

So many years my mind was full of angers, sorrows and hatred. I consistenly replayed and ruminated on past awful moments ranging from a day old to several decades old events. But now I can stop the process when negative emotion starts to creep in. It's hard to explain what exactly brought this change, and the skill to do so has room for improvement. Yet I am thankful that I'm getting more control and becoming more positive .