martinC
Ok friend, come on!
There are different ways to do what you want, directly in the code.
In the case of changing words / expressions, perhaps the simplest way is to change a string by text. Ex:
<a href="{{ route('admin.dashboard') }}"> @lang('app.menu.dashboard') </a>
<a href="{{ route('admin.dashboard') }}"> Dashboard </a>
Hide or remove items from the menu, there are also different ways to do it.
You could simply delete the lines of code in the HTML from the menu that you no longer want to appear.
You can also comment on these lines so that they are not removed but hidden without being read by the browser.
Ex: <!-- yourcode -->
You could also add an attribute to the element class.
Ex: style="display: none;"
Each way of doing it reflects in a way in the system, I'm being brief and it's worth you to take a look at the subject to choose the best way out.
I hope I helped in some way 🙂