(2 questions in 1 post) Blood GUI, thirst not working Why is that?

--kills player if he/she has no blood.
function Check()
if script.Parent.Value == 0 then
    game.Players.LocalPlayer.Character.Humanoid.Health = 0
end
end

script.Parent.Changed:connect(Check)

--if bleeding is true, slowly take away 
script.Parent.Parent.Parent.BleedingGui.IsBleeding.Changed:connect(function()
    print("u gon bleed to deth")
        if script.Parent.Parent.Parent.BleedingGui.IsBleeding == true then
            script.Parent.Parent.Parent.BleedingGui.TextLabel.Visible = true
            for i = 1, script.Parent.Parent.Parent.BloodGui.Blood.Value do
                wait(1.5)
            game.Players.LocalPlayer.Character.Humanoid.Health = game.Players.LocalPlayer.Character.Humanoid.Health - 5
            end
            else game.Players.LocalPlayer.Character.Humanoid.Health = game.Players.LocalPlayer.Character.Humanoid.Health
            script.Parent.Parent.Parent.BleedingGui.TextLabel.Visible = false
        end
end)

--keep the value the same with the GUI

script.Parent.Changed:connect(function()
    script.Parent.Parent.TextLabel.Text = "Blood [" .. script.Parent.Value .. "]"
end)

Above won't do anything if IsBleeding is set to true, and the GUI isn't keeping track of its Value. It seems as if "if" statements hate me :l

Below won't set IsBleeding to true, and the GUI isn't keeping track of the value (Like the BloodGui).

--Player hunger/energy/thirst script made by Cyotokatrov

x = game.Workspace
y = script.Parent

for i = 1, y.Thirst.Value do
    wait(15)
    y.Thirst.Value = y.Thirst.Value - 1
    script.Parent.TextLabel.Text = "Thirst [" .. script.Parent.Thirst.Value .. "]"
end

function a()
if script.Parent.Thirst.Value == 0 then
    print("u ded nao boi")
    for i = 1, script.Parent.Parent.BloodGui.Blood.Value do
        wait(0.1)
        script.Parent.Parent.BloodGui.Blood.Value = script.Parent.Parent.BloodGui.Blood.Value - 1
    end
end
end
script.Parent.Thirst.Changed:connect(a)

script.Parent.Changed:connect(function()
    script.Parent.Parent.TextLabel.Text = "Blood [" .. script.Parent.Value .. "]"
end)

Will screenshots of the error help?