Laptops and other types of computers are incredibly complex machines in some way, shape or form, and it really is quite remarkable that they manage to work as efficiently and as effectively as they do at any given point in time. That said, it is highly possible that something or the other might go wrong in your laptop, and what you need to figure out is whether or not fixing that issue will even be worthwhile for you. A big part of the reason why that is the case has to do with the fact that some issues will be so expensive to fix that you might just be better off cutting your losses and opting for something that would be a bit more reasonable such as buying a brand new laptop.
One thing that might go wrong in your gaming laptop is that the motherboard might stop working. Sometimes this occurs due to your power IC getting blown thanks to excessive charging on your part, and when this occurs suffice it to say that replacing the motherboard will really just be an exercise in futility rather than being something that is truly worthwhile for you.
Motherboards are exceedingly expensive, so rather than buying a new one to replace the one that was damaged you would do well to just dispose of the laptop. A new motherboard will not fix a lot of the other problems that might have occurred in your PC, and since the cost is so high you can just add a bit more money on top of that and simply get a new laptop that would run perfectly from the very start and would not get damaged.