How to bulk-move all folder contents of multiple folders up 1 level?

I hope I can explain this clearly...

I want to move all folders of a specific level, along with their contents, one level up, (and can later remove the folder that they had been contained in)?

Example:
Root/Subfolder1/junkfolder1/Year/File.jpg
Root/Subfolder2/junkfolder2/Year/File.jpg

result:
Root/Subfolder1/Year/File.jpg
Root/Subfolder2/Year/File.jpg

I want to just move the contents of the junkfolder's up one level into their respective Subfolders, leaving the rest of each file/folder's directory otherwise the same.

I don't mind if the method were slower than tolerable to others (if it works, it works).
But I'm also not experienced with anything Command-style, or whatever, so if that's the only solution, a clear explanation would be wonderful, if you would please do so...

side request: I'm looking on other sites as well for a way to do this, so please don't just put some suggestion of "you could try this" or "Google that"... please?

For over 1,000 target folders' contents of 5+ subfolders each? If I was wanting to go manual on thousands of files/folders, I'd have started long ago... and still be going.

I'm looking for a bulk method for a reason.

... I seem to get the same useless suggestion everywhere. Yes, I get the idea that may be the answer.
That's WHY I'm asking for help: I HAVE NO CLUE HOW TO DO THAT.

I'd heard this site has some helpful tech guys... How can I attract the attention of one of them who would know how to do something like this?
I hope I don't sound rude, I'm just tired of having no clue how to do this and being given the same non-helpful suggestions... (Not just on this site, really)