How to Find and Clean All the Junk Files Completely？

Question

Need guidance and smart suggestions on how to find the junk files which are not easily noticed and clean them all~ 
Feels like my phone storage is being taken up more and more gradually and there must have some unknow files or unexpected cache files.

Lindsay mcdaniel · Answer

Barbara
After clearing cashed data,  go to apps, find My Files. In that app you will find Internal storage.  In there you will find all the files that were created by your activity. Some of them will be empty.
Delete them and you will free up your storage. 
Personally I delete them all!
Oh yea you have a different phone than I do! So find your  "internal storage" then start deleting.
Hope this helps!