It’s not a stupid question, but that doesn’t mean it has a good answer. The short answer is difficult and expensive. The longer answer is maybe not that bad, but it will cost time or money, which could probably be better spent buying a new laptop and reinstalling your programs.
I’m assuming the laptop is out of warranty, because otherwise, what would be the point of this discussion? Some manufacturers will repair out of warranty machines. You can investigate the cost of that. The problem is, it might cost you just to get an estimate. Some companies have a flat fee for out of warranty repairs. You could also look into other computer repair shops. I’d investigate independent shops in your area, as opposed to big-name chains.
For some reason, laptop motherboards seem to always cost $400. I don’t know why. You might be able to find a motherboard for your laptop on ebay from a machine with a broken screen, for example. For that matter, you might be able to buy a working machine identical to yours, and just stick in (or clone) your drive.
Laptops are very annoying to work inside. Even the “trained” repair techs often put them back together wrong. Doing it yourself is certainly not impossible, but if you don’t have experience working inside computers, then it is definitely jumping into the deep end.
In summary, if this computer is barely over a year old, and just out of warranty you can try guilting the manufacturer into fixing it for free. Nothing to loose, really. If it’s much older than 2 years, then any but the most trivial cost to fix it is probably better applied towards a new machine. That does depend in some part on how much it will cost to replace with a new, but similar form factor computer. $350 discount special laptops are disposable. A 2 year old $1200 high end business laptop might cost enough to replace ($1200!) that it’s worth trying to repair. Even though for the repair price, you could buy a $350 disposable laptop, which will be faster than the old one.
Anyway, carefully consider the difficulty, time, and expense of reinstalling all of your programs on a new computer, with that of trying to repair the old one.