You really just need, like, a screwdriver set to get into most laptops. Maybe you can search online (e.g. on YouTube) for tutorials for your model. Then you can buy a replacement fan and also replace the thermal paste, because 13-year-old thermal paste surely isn’t doing you any favors in the performance department. Altogether it shouldn’t cost more than €50 (if you’re careful not to break any internals).

BTW, if you want to watch YouTube videos with less resources, you can also copy the video URL into VLC

hates Macs

buys M2 Mac

Microsoft and Apple have offices around the world though, so it doesn’t really make sense