Melissa - this won't suit everyone, I know.... but my advice - bin them, and move on to something new...
I have no idea what happened to my earliest girl stuff - I know many of my
favourite things were purged, shredded, trashed... I only regret trashing things that were still wearable... comfortable heels, mainly...
but that's rationality, not sentiment...
I don't keep my old boy clothes unless there's life in them... I still have a pair of Dr Martens boots bought in 1974 that still have useful life left..
For me, sentiment is reserved only for people I have known and loved, whereas material things are... immaterial, in a greater sense...
Katey x