What you need to do is clean the dust off of your fans and ventilation filters (check guides or figure it as you go, but make sure to disconnect the battery and the fans from the mobo as soon as you open it). Then, repaste it with good thermal paste or some liquid metal if you’re feeling confident. I have liquid metal (thermal grizzly condoctonaut) on both of my laptops, and one of them which had overheated since day one, doesn’t anymore.