Check if its false or true?

script.Parent.MouseButton1Click:connect(function()
		if script.Parent.Storage.Redeemedb.Value == true then
			script.Parent.Parent.Input.Text = "Already Redeemed!"
		wait(2)
		script.Parent.Parent.Input.Text = "Enter Code Here"
else
		if script.Parent.Storage.Redeemedb.Value == false and script.Parent.Parent.Input.Text == "tankman" then
		game.Players.LocalPlayer.Character.Humanoid.MaxHealth = 200
		script.Parent.Storage.Redeemedb.Value = true
		script.Parent.Parent.Input.Text = 'Code Redeemed!'
		wait(2)
		script.Parent.Parent.Input.Text = 'Enter Code Here'
	else
		script.Parent.Parent.Input.Text = 'Code Invalid'
		wait(2)
		script.Parent.Parent.Input.Text = 'Enter Code Here'
	end
		end
end)

How would i make it to check ifits true or false then if its false check the code and if its entered wrong do code invalid and if its entered right it changes the bool to true so they cant redeem it again. right now all its doing is ill enter the wrong code on purpose then it says already redeemed how would I fix this script :(