There are many sofware aps that are good to use, I use MS. digital photo suite and jasco paint shop photo album.
Try this: Try to sort the various albums / photos by date and or event and or event, & or file type etc. this option should be acessasble in the edit options in the upper top left of your screen.. Thats how I do mine and I have a bunch as well.
which ever one gets you to the closest desired results, use: then comes the tedious
task of manually arranging them......
Like walkin down memory lane with a migrane and a limp.... Good luk