How can I get the data off my S7 Edge?

A little over a week ago I was closing the Gallery app on my S7 Edge when the screen froze. It had never done that before. The screen was actually a mix of Gallery and the Main screen. Then it wouldn't do anything. Just frozen. I turned the power off but it wouldn't come back on again. I knew I hadn't drained the battery because I was charging it at the time and my battery was on about 40%. I tried all of the boot combinations and the only one that did anything was the Volume Down and Power combo which SOMETIMES brings up the blue “RECOVERY BOOTING" message on the screen but then doesn't do anything else. Since this message comes up doesn't that mean my phone isn't completely dead? Is there a way for me to get my data off the phone? I have over 5 years of pics, documents, notes, bookmarks, etc on this phone. Is there a hard drive or chip that can be removed to extract my data?