How do i wait until a player has respawned?

I want to teleport a player once they have respawned or change their respawn point. i was thinking something like this maybe would work but it didn't:

local checkfolder = game.Workspace.checkpoints
local Players = game:GetService("Players")

game.Players.PlayerAdded:Connect(function(player)
	local leaderstats = Instance.new("Folder",player)
	leaderstats.Name = "leaderstats"
	
	local Checkpoint = Instance.new("IntValue",leaderstats)
	Checkpoint.Name = "Stage"
	
	for i,v in pairs(checkfolder:GetChildren()) do
		if v:IsA("BasePart") then
			v.Touched:Connect(function(hit)
				local char = hit.Parent
                local plr = Players:GetPlayerFromCharacter(char)
                if i == 1 then
                    Checkpoint.Value = 2
					if plr then
						plr.CharacterAdded:Wait()
						char:WaitForChild("HumanoidRootPart").CFrame = v.CFrame * CFrame.new(0, 3, 0)
					end
				end
				if i == 2 then
					Checkpoint.Value = 3
				end		
				if i ==3 then
					Checkpoint.Value = 4
				end
				if i == 4 then
					Checkpoint.Value = 5
				end
				if i == 5 then
					Checkpoint.Value = 6
				end
				if i == 6 then
					Checkpoint.Value = 7
				end
				if i == 7 then
					Checkpoint.Value = 8
				end
				if i == 8 then
					Checkpoint.Value = 9
				end
			end)
		end
	end
end)

it didn't work, so i set respawn time to 0 and removed the code

repeat wait() until humanoid.Health == 100

but it still didn't work

Edit: I posted the full script so you can find out what the problem is. The output isn't processing any errors.

Checkpoint.Value will equal 1 when it steps on the spawn and that is another script. This is the other script:

game.Players.PlayerAdded:Connect(function(plr)
	local Checkpoint = plr.leaderstats.Stage
	for i,v in pairs(script.Parent:GetChildren()) do
		if v:IsA("SpawnLocation") then
			v.Touched:Connect(function(char)
				if char.Parent:FindFirstChild("Humanoid") then
					Checkpoint.Value = 1
				end
			end)
		end
	end
end)

So i am unable to wait when character is added otherwise the checkpoint value will equal to 0

You cant detect if the health if a died humanoid goes up after it has respawned. if a player respawns the player fires the function MakeJoints and on died BreakJoints. If a player has fired the function BreakJoints, the humanoid is indeed still there until the player has officially respawned, when the player respawns they get a new humanoid which has to be called in the script. but that's impossible since the script is waiting for the old (deleted) humanoid for its health to go back go 100 which isn't happening.

What you either can do is identify if a player has indeed respawned and then fire the function you want to.

Oh right I forgot, you need to get the "real" player by this:

local Players = game:GetService("Players") -- we need Players service to get the player from character

v.Touched:Connect(function(hit) --you should change the parameter name to another name because maybe the thing that touch the part maybe is not a player
	local char = hit.Parent
	local plr = Players:GetPlayerFromCharacter(char) -- this function will get the player instance from character model
	if plr then
		plr.CharacterAdded:Wait() --this will make the script wait until the event fire, in this case wait until the player respawn

		char:WaitForChild("HumanoidRootPart").CFrame = v.CFrame * CFrame.new(0,3,0)
	end
end)

Hope this helping you.