Watching any programming tutorial is different than watching any movie. You need to have practice and have experiments form different angle of codes. Prentice and research is only way to get into the deep of any language. If you think you have well understanding about php then try to make some small application like phonebook which have database connection. After that you can move for any frame work like laravel, cakephp. But I always recommend to do at least one small project with raw php before move for any framework because when you come from raw php you will start loving working with frameworks otherwise you will may feel boring to learn again something new as my point of view.
