'Failed to load resource: the server responded with a status of 404 (Not Found) can't link my js or css files

I want to make a new website using Laravel but every time I make a new project I get the same problem and I can't solve it. I have tried what feels like everything.

<link rel="stylesheet" href="/resources/css/app.css"/>

Screenshot of my CSS file in the folders tree:

and it gives the following error:

Failed to load resource: the server responded with a status of 404 (Not Found)

The question is: how can I fix such problem and any idea on how can I prevent this from happening again in future projects?

html css laravel phpstorm

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