How to debug/view SQL requests with Laravel / Laragon

My question is very simple but I have no clue: I have always been working with java and eclipse or C# until now so it's a "new world" :)

How can I debug my laravel code?

I am using laravel and vuejs. I start my server with laragon, and I use VScode. I have tried starting it from VScode (added xdebug dll in laragon) but it doesn't give me more info, and I don't manage to debug anything using breakpoints:

{
    "name": "Launch localhost",
    "type": "chrome",
    "request": "launch",
    "url": "http://127.0.0.1/",
    "webRoot": "C://laragon//www//projet"
},
{
    "name": "Launch index.php",
    "type": "chrome",
    "request": "launch",
    "file": "C://laragon//www//projet//index.php"
},

When I get an error with sql, all I get is

app.js:651 Uncaught (in promise) Error: Request failed with status code 500
    at createError (app.js:651)
    at settle (app.js:814)
    at XMLHttpRequest.handleLoad (app.js:184)

How can I see my SQL request and get the "real error"? And how can I properly debug?

Thanks a lot in advance.

via Chebli Mohamed