That's something I am just trying to work on myself. Some residual anger screwing up my now. The past is just memories and it doesn't really matter anymore if it only matters in my mind. So I have some control over what I place importance on and what I choose to focus on. Trying real hard to live in the moment. The past is only allowed (as close as I can get it) to enhance the now. Maybe a memory of the way fall smelled when my daughter was young when I smell it again. I get to feel that way again without bumming on the fact she is not a sweet little kid anymore or worried about how many more years before she ditches me.
Easier said than done though.