My usual short answer: Inconsistent.
Long answer: I'd rather change my perception in every memory of the past I got...
Preferably replacing most of it in a more mature and unconditional kind of lens than simply realistic and positive. Positive is just one thing for me.
Longer answer:
Sometimes it's relevant, sometimes it's not.
Sometimes it mattered, sometimes it's not.
Sometimes it's reliable, sometimes it's not.
Sometimes I look back at it, sometimes I chose not to.
Sometimes it brings up or it doesn't whether I chose to or not.
Sometimes looking back at it brings regrets and wrong kinds of surrendering, sometimes looking back at it brings acceptance and real learning, or neither.
Sometimes I do cherish it, sometimes I would rather it burn into the oblivion.
Sometimes I disregard it, sometimes I ended up wandering at it.
And so-so, I had enough with swinging between continuums.