Not at all sure how to make color changing script for checkpoints?

Ok so basically I'm making an obby and I have a script that makes the checkpoints change color once they are touched. To expand on this, I'm trying to make a script that checks the player's stage value and if the stage value is higher than the value of a checkpoint, then the color of the checkpoints up to that stage will already be that color. This is written in a local script. I'm extremely new to scripting and I'm sure tons of things in this script are wrong but I really would like some feedback. I would also like to add that I plan on making it so that you can reset your stage and when that happens, I need the checkpoints to return to the original color, so I would like for any solution to be compatible with that as well. Thank you.

local stageHolder = game.Workspace.Stages
local stages = stageHolder:GetChildren()
local blue = table.getn(stages)
local player = script.Parent.Parent
local stageValue = player.leaderstats.Stage.Value

for i,v in pairs(stages) do
	local text = i
	local number = v
	
	while true do
		if v >= stageValue then stageHolder[v].Color = Color3.fromRGB(71, 255, 243)
			wait(0.1)
		end
	end
end

Here you go

for _, checkpoint in pairs(workspace:FindFirstChild("Checkpoints"):GetChildren()) do
	if checkpoint then
		
		checkpoint.Touched:Connect(function(hit)
			if hit and hit.Parent:FindFirstChild("Humanoid") and game:GetService("Players"):GetPlayerFromCharacter(hit.Parent) and not checkpoint:FindFirstChild("HasTouched") then
				
				checkpoint.BrickColor = BrickColor.Random()
				
				local hasTouched = Instance.new("BoolValue")
				hasTouched.Name = "HasTouched"
				hasTouched.Value = true
				hasTouched.Parent = checkpoint
				
			end
		end)
		
	end
end