How do I make it so the chosenplayer isnt the same each round?

Maybe this will work for you?

Just so you know if you are the only one in the server it will keep trying to pick a new player but can't since you're the only

local re = game.ReplicatedStorage.RemoteEvents
local values = game.ReplicatedStorage.Values
local nl = 1
local lastChosenPlayer = nil

local function randomP()

 local players = game.Workspace.PlayerTest:GetChildren()
    local PlayerNum = math.random(1, #players)
    local ChosenPlayer = players[PlayerNum]
    if ChosenPlayer == LastChosenPlayer then
        print("same player, choosing a new one")
        randomP()
    else

    print(ChosenPlayer)
    values.CanStart.Value = true
    values.NextUp.Value = ChosenPlayer.Name
    values.NextName.Value = ChosenPlayer.Name
    end




end

local function clear()
    values.Value.Value = true
    values.PlayerValue.Value = ""
    values.NValue.Value = 0
    values.YValue.Value = 0
    values.NameValue.Value = ""
    values.CanStart.Value = false
end


repeat
    re.TimerEvent:FireAllClients(false, values.NextUp.Value, 0, "", values.Players.Value)
    wait()
until values.Players.Value >= 2
wait(10)
local function G()
    print("Okay")
    values.Value.Value = false
    values.PlayerValue.Value = values.NextUp.Value
    values.NameValue.Value = values.NextName.Value
    game.Workspace.Helicopter.Main.SurfaceGui1.Back.Text = "Decide "..values.NextUp.Value.."'s fate!"
    game.Workspace.Helicopter.Main.SurfaceGui.Front.Text = "Decide "..values.NextUp.Value.."'s fate!"
    if values.NameValue.Value ~= "" then
        --game.Players:FindFirstChild(values.NextName.Value).Character:FindFirstChild("HumanoidRootPart").CFrame = game.Workspace.TPart.CFrame
    end
    randomP()
    re.TimerEvent:FireAllClients(true, values.NextUp.Value, 30, "Next Up:")
    re.VoteEvent:FireAllClients(values.PlayerValue.Value)
    wait(30)
    if values.NValue.Value > values.YValue.Value then

        if values.NameValue.Value ~= "" then
            if game.Players:FindFirstChild(values.NameValue.Value).HasAvoid.Value == false then
        --game.Players:FindFirstChild(values.NameValue.Value):Kick("Kicked by majority")
                re.CloseEvent:FireAllClients(values.PlayerValue.Value, "Kick")
            else
                game.Players:FindFirstChild(values.NameValue.Value).HasAvoid.Value = false
                re.BuyEvent:FireClient(game.Players:FindFirstChild(values.NameValue.Value), "not")
                --game.Workspace:FindFirstChild(values.NameValue.Value).HumanoidRootPart.Position = game.Workspace.SpawnLocation.Position
            end
        end
    end
    if values.NValue.Value <= values.YValue.Value then
        if values.NameValue.Value ~= "" then
            re.CloseEvent:FireAllClients(values.PlayerValue.Value, "Stay")
            --game.Workspace:FindFirstChild(values.NameValue.Value).HumanoidRootPart.Position = game.Workspace.SpawnLocation.Position
        end
    end
    wait(3)
    clear()
end

while true do
    if values.Value.Value == true then
        G()
    end
end