Control a visual impairment by voice,control a visual impairment by voice

Hello, I think that this is only possible with AppleScript, but I still have too little experience because I just changed from Windows to Mac. I have a visual impairment and would like to control as much as possible by voice.

I already have a dictation command "apple" (fn + ctrl + F2) with which I can start this. With a further "down" (arrow key down), the menu also works, but is not activated, so that further navigation without a keyboard is not possible. If this action is carried out with the arrow key, the menu is active, however, I succeed also then no further navigation by voice commands. For the Enter I have already created a key combination with Spark (key code 36) to call them by voice. But what good is that to me if I can not get to the menu items?

Who has a goal-oriented idea? Best regards, Quizlet