Unhappy [Q] how to retrieve gallery lock files when deleted from Misc. folder in Note 2 N7100

HI.... please help me out..
i was browsing my phone and came across a folder named Miscellnous folder in storage, and showed about 6 gb of data in it.. Thinking that this would be a folder containing temporary files just like a temp folder in desktops, i deleted the entire folder.
Now all my whatsapp pics, snotes, gallery lock files are gone and deleted. is there a way to retrieve everything i had i really need snote files and gallery lock pics.
i open gallery lock it still shows the folder names and the no. of files it has/had.. but when i open it, files are still there but i cannot preview/open them. please help with gallery lock and s note files..