How do I make a GUI show up on individual screens instead of everyone's screen?

I'm currently trying to figure out how to make this GUI show up on individual player screens instead of it showing up on everyone's screen.

local checkpoint1 = workspace.Map.checkpoint1
debounce = false
function onTouch(checkpoint1)
if debounce == true then return end
debounce = true
local checkPoint1Message = Instance.new("TextLabel")
	checkPoint1Message.Parent = script.Parent
	checkPoint1Message.BackgroundTransparency = 0.3
	checkPoint1Message.BackgroundColor = BrickColor.Black(0, 0, 0)
	checkPoint1Message.Position = UDim2.new(0, 0, 0, 0)
	checkPoint1Message.Size = UDim2.new(0, 300, 0, 100)
	checkPoint1Message.Text = "Checkpoint 1 Cleared!"
	checkPoint1Message.TextColor = BrickColor.White(255, 255, 255)
	checkPoint1Message.Font = Enum.Font.Legacy
	checkPoint1Message.FontSize = Enum.FontSize.Size24
	checkPoint1Message.TextScaled = true
	
--Checkpoint 1 "beeping" sound
local checkPoint1Sound = Instance.new("Sound")
	checkPoint1Sound.SoundId = "http://www.roblox.com/asset/?id=177578949"
	checkPoint1Sound.Parent = script.Parent
	checkPoint1Sound:Play()
	checkPoint1Sound.Volume = 1
	wait(1)
	checkPoint1Sound:Destroy()
	checkPoint1Message:Destroy()
	debounce = false
end

checkpoint1.Touched:connect(onTouch)

if you want GUI's to show up in individual players screens, you need to put it into their PlayerGui, which is located here: game.Players.PlayerName.PlayerGui