Lenovo loq dead while gaming

Well today I've been playing Warzone all day and it turns out that in my last game before going to sleep the laptop turns off completely and gives no signs of charging or turning on.

I practically lost the warranty because this laptop literally turned off while I was playing Warzone and even in low graphics the temperatures didn't improve, since I changed the thermal paste a week ago, I don't even know what to do with my life anymore,I've only had the laptop for 3 months and it's showing overheating problems in the CPU.

I am a technician and I made the change as a preventive measure. What I would like right now since I lost my warranty is a boardview that Lenovo can provide me with, please, since this problem looks serious.