SQLSTATE[HY000] [2002] Connection refused Don't know what to do

Question

I'm using a MacbookPro M1. I am trying to run php artisan migrate, but it keeps giving me this error message.

SQLSTATE[HY000] [2002] Connection refused (SQL: select * from information_schema.tables where table_schema = library-app and table_name = migrations and table_type = 'BASE TABLE')

Here's my .env file

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=library-app
DB_USERNAME=root
DB_PASSWORD=password123

I tried looking everywhere on the Internet but to no avail. I need assistance since I have no more options.

Update: I tried changing DB_HOST=127.0.0.1 to localhost and it didn't do anything.