I'm hoping at least 1 person can help me 🙏🙏

The screen on my A52s 5G phone has cracked to the point I cannot view what is on the screen. At first the screen would flicker (only colours tho), not so much now. But I do know its on (used where's my phone & called it).

I've gone through various articles to try and retrieve everything on it (not backed up 🤦‍♀️), but no luck. I purchased a usb-c to HDMI cable but that doesn't seem to be working. I've since read something about MHL(?). 

Also I have a screen lock (pin).

Can someone please tell me what I need to do, using simple explanations, so I can retrieve my data?? 

(FYI I do have a smart LG TV. I can use the remote like a mouse if need be, I just need to see what I'm doing)