Health changing too early

Help and Feedback Scripting Support
1

As you can see if I have health that is less than max health (150 hp) the animation and subtracting health happens to early and sometimes repeats the animation

remoteevent.OnServerEvent:Connect(function(player,Boxz)
	local d = false
	local Selected = player:WaitForChild("Selected")
	local Humanoid = WorkSpace:WaitForChild(player.Name).Humanoid
	local Track = Humanoid:LoadAnimation(script.Animation)
	local Box = WorkSpace.Boxes:WaitForChild(tostring(Boxz))
	Selected.Value = tostring(Boxz)
	
	local rootPartPos = Humanoid.RootPart.Position
	local offsetDirection = rootPartPos-Box.PrimaryPart.Position
	local Health = Box.Part.Health
	Humanoid:MoveTo(Box.PrimaryPart.Position +offsetDirection.Unit*4)
	Humanoid.MoveToFinished:Wait()
	d = true
	Selected.Changed:Connect(function()
		Track:Stop()
	end)
	Health.Changed:Connect(function()
		
	end)
	spawn(function()
		repeat
			if Selected.Value == tostring(Box) and d == true then
				Track:Play()
				Box.Part.Health.Value -= 10
			end
			wait(1)
		until Humanoid.MoveDirection.X > 0 or Humanoid.MoveDirection.Z > 0 or Humanoid.MoveDirection.X < 0 or Humanoid.MoveDirection.Z < 0 or Box.Part.Health.Value == 0 or Box.Part.Health.Value < 0 
	end)
end)
3

If you are trying to damage after the animation I think this should work:

spawn(function()
		repeat
			if Selected.Value == tostring(Box) and d == true then
				Track:Play()
                Track.Stopped:Connect(function()
				     Box.Part.Health.Value -= 10
                end)
			end
			wait(1)
		until Humanoid.MoveDirection.X > 0 or Humanoid.MoveDirection.Z > 0 or Humanoid.MoveDirection.X < 0 or Humanoid.MoveDirection.Z < 0 or Box.Part.Health.Value == 0 or Box.Part.Health.Value < 0 
	end)
end)