Complete Green screen

My phone screen turned green and it's been 5-6 months... I want to back up and recover some important data, so that's why I want to keep it. The thing is the screen is completely green without showing anything. I did a quick research, the nearest problem I got is from this youtube channel: Screen Turns Green Suddenly? Here's How to Fix Android phone Green Screen Issues . But mine's worse than this problem. The youtuber's phone is completely green, but at least, somehow it manages to show icons and for some minutes seemed back to normal and could go to the setting or after restarting, the Samsung brand icon showing up. However mine's just green. Perhaps you might suggest buy a new one (but I need the data). I'm just upset when I have replaced the LCD twice, and this time, it only lasts for 1 or 2 months after replacing and the green screen reappears. I even lost money twice more than the original price of the phone (darn!, Sorry). I don't even know if my screen is showing the home page (on mode), or perhaps even it's on the off mode. I couldn't tell which is which... So how to resolve this problem? Replacing the LCD would cost 3/4 of a similar price to the phone when it's sold, but if that's gonna work, I'll do it. I care about my data... So could someone convince me safely that if I replace the LCD it would work again as usual? The condition of my phone while it's charged: It's Samsung Galaxy A73 5G, by the way, and yes, I posed a question before about 3 green lines (which was nothing serious compared to this one) and since then I have replaced the LCD but the second replacement (my first replacement was few months ago), it's broken again. I'm frustrated and not even sure whether the problem is on the screen or something about the motherboard or whatever it's called... Any good advice would really help.