I think there is no need to completely ditch memoires. I doubt anyone could ever do that. Memories can be a good thing if you choose to remember the parts of them that make you feel joyful and appreciative while not dwelling on the bad aspects. No memory can be all bad, right? For example, even if it's a mostly terrible memory, you could choose to focus on what you learned from the experience. Focusing on what you've learned and how you've grown will stop you from feeling crummy and even help you remember the person or situation in a new, better light.

Or so I'm told. ;)