can you put a if in a if statement and help with checking if player has pressed e?

in my game i am trying to make if a player is on one part then if they press a key a function will be triggered after multiple testing i have not succeeded, so i have two questions can you put a if inside a if statement (this is the way i have been trying to use) and if yes/no how can i fix it

this is the code i have been using i removed the if statement inside the if statement i was using because i thought it wasn't necessary if you want it please ask.

debounce = false

script.Parent.Touched:connect(function(hit)

 if not debounce then

        debounce = true
        if(hit.Parent:FindFirstChild("Humanoid")~=nil)then




        local player = game.Players:GetPlayerFromCharacter(hit.Parent)
        local sound = script.Parent.Sound:Clone()
        sound.Parent = player.PlayerGui
        sound:Play()
        wait(5)
        local player = game.Players.LocalPlayer
        local mouse = player:GetMouse()

        mouse.KeyDown:connect(function(key)

            if key == "e" then
                print("diditwork")

            end
        end)

     end
    debounce = false
end

end)