This is often caused by the hinges themselves being too rigid or missing base screws. So check your base screws are in place and screwed in securely. When base screws are missing, particularly the main structural screws located in the corners of the base assembly, the load from the hinges isn’t sufficiently transferred across the hinge and base assembly, hence the hinges will have to bear the load and wear prematurely.
If you need to repair your laptop hinge it will usually be because your screen is loose and refuses to remain upright or when the hinges themselves crack or break under the repetitive strain of opening and closing.
Cover assemblies are not expensive, just ensure you get the right cover that matches the type of LCD you have. Not all covers are exactly the same because laptop manufacturers don’t always use the same type or model of screen during the assembly of new laptops. The differences will be minor but they can prevent you fitting your LCD back into the new cover mainly due to the placement of screw holes and mountings.