Let's get straight to the point, long story short:
I opened my pc and a pop up asked if I wanted to delete directly a folder and all its files as it was too big for the trash. I clicked "No" but it went deleting anyways... so I stopped it.
I tried several File Recovering Softwares (EaseUS, Recuva, Puran, etc) and all of them recovered the files but when I open them the pc can't recognize their format (or won't open them anyways).
I've read a post about a software called File Scavanger, I'll now try this one too, however if you have any other softwares (even for non-beginners) please let me know! I need to recover many file types, but the most important one is: .veg (Vegas Pro File)
Thank you for all thesupport you'll be able to give me, if you need any further infos please just ask I'll be ready to answer!
NOTE: Also I've installed the first Software on the same disk of where the files were deleted, so basically very few files were slightly overwritten (but not all of my case) now I changed the Download folder's directory.
P.S. I'm using an ASUS pc running Windows 10.