Change a players stats with a script being enabled/disabled?

So.. I've asked this question before but I might have a better solution, I just want some input.

I have a tool in my game, that boosts walk speed/hp/attack damage. (attack damage value is called FAP, and it effects skill damage as well as basic attacks, like punches) Every time the player uses this however, they can just reset and keep the stat gain (FAP value) or leave the game and save the value. I was wondering, what if I made a script with the stat gain on it, and when it is enabled(enabled with left click and disabled after a certain time) the stats go up, and when the player dies the script is disabled. Do you think that it will work?

Here is the script as it is now:

bin=script.Parent  
me = script.Parent.Parent.Parent
local thrust = Instance.new("BodyVelocity")
enabled = true


function onButton1Down(mouse) 
	if enabled == false then 
		return
	end

torso = bin.Chest:clone()
larm = bin.LArm:clone()
rarm = bin.RArm:clone()
lleg = bin.LLeg:clone()
rleg = bin.RLeg:clone()
horns = bin.Horns:clone()

	char = bin.Parent.Parent.Character
	enabled = false
	game:GetService("Chat"):Chat(me.Character.Head, "....", Enum.ChatColor.Red)
		me.Character.Humanoid.WalkSpeed = 0
	wait(1)


if larm ~= nil then
local larmweld = Instance.new("Weld")
	larmweld.Parent = larm
	larmweld.Part0 = larmweld.Parent
	larmweld.Part1 = char:findFirstChild("Left Arm")
	larmweld.C1 = CFrame.new(0, 0, 0)
	larm.Parent = char
end

wait(1)
if rarm ~= nil then
local rarmweld = Instance.new("Weld")
	rarmweld.Parent = rarm
	rarmweld.Part0 = rarmweld.Parent
	rarmweld.Part1 = char:findFirstChild("Right Arm")
	rarmweld.C1 = CFrame.new(0, 0, 0)
	rarm.Parent = char
end
game:GetService("Chat"):Chat(me.Character.Head, "...", Enum.ChatColor.Red)
	wait(1)


if rleg ~= nil then
local  rlegweld = Instance.new("Weld")
	 rlegweld.Parent =  rleg
	 rlegweld.Part0 = rlegweld.Parent
	 rlegweld.Part1 = char:findFirstChild("Right Leg")
	 rlegweld.C1 = CFrame.new(0, 0, 0)
	 rleg.Parent = char
end

wait(1)


if lleg ~= nil then
local llegweld = Instance.new("Weld")
	llegweld.Parent = lleg
	llegweld.Part0 = llegweld.Parent
	llegweld.Part1 = char:findFirstChild("Left Leg")
	llegweld.C1 = CFrame.new(0, 0, 0)
	lleg.Parent = char
end
wait(.5)
if horns ~= nil then
local hornsweld = Instance.new("Weld")
	hornsweld.Parent = horns
	hornsweld.Part0 = hornsweld.Parent
	hornsweld.Part1 = char.Head
	hornsweld.C1 = CFrame.new(0, 0, 0)
	horns.Parent = char
end
aa = Instance.new("Sound")
        aa.SoundId = "http://www.roblox.com/asset/?id=342472438"
        aa.Parent = torso
aa.Volume = 2
        aa:play()
wait(1)

if torso ~= nil then
local torsoweld = Instance.new("Weld")
	torsoweld.Parent = torso
	torsoweld.Part0 = torsoweld.Parent
	torsoweld.Part1 = char.Torso
	torsoweld.C1 = CFrame.new(0, 0, 0)
	torso.Parent = char
end
aa = Instance.new("Sound")
        aa.SoundId = "http://www.roblox.com/asset/?id=262498455"
        aa.Parent = torso
aa.Volume = 2
aa.Looped = true
        aa:play()
wait(1)
game:GetService("Chat"):Chat(me.Character.Head, "...", Enum.ChatColor.Red)
wait(0.5)

me.Character.Humanoid.WalkSpeed = me.Character.Humanoid.WalkSpeed + 60
me.Character.Humanoid.MaxHealth = me.Character.Humanoid.MaxHealth + 500
me.Character.Humanoid.Health = me.Character.Humanoid.Health + 500
me.Levelss.FAP.Value = me.Levelss.FAP.Value + 200


wait(120)

	if char:findFirstChild("Chest") ~= nil then
		char.Chest:remove()
	end
	if char:findFirstChild("LArm") ~= nil then
		char.LArm:remove()
	end
	if char:findFirstChild("RArm") ~= nil then
		char.RArm:remove()
	end
	if char:findFirstChild("LLeg") ~= nil then
		char.LLeg:remove()
	end
	if char:findFirstChild("RLeg") ~= nil then
		char.RLeg:remove()
	end
	if char:findFirstChild("Horns") ~= nil then
		char.Horns:remove()
	end


game:GetService("Chat"):Chat(me.Character.Head, "Gotta rest...", Enum.ChatColor.Green)
me.Character.Humanoid.WalkSpeed = me.Character.Humanoid.WalkSpeed - 44
me.Character.Humanoid.MaxHealth = me.Character.Humanoid.MaxHealth - 500
me.Character.Humanoid.Health = me.Character.Humanoid.Health - 500
me.Levelss.FAP.Value = me.Levelss.FAP.Value - 200
	wait(35)
	enabled = true
end
function onDe()
	
char = bin.Parent.Parent.Character
	--if char:findFirstChild("ForceField") ~= nil then
		--char.ForceField:remove()
	--end

local stuff = player.Character:getChildren()
end

function onSelected(mouse)

print("Selected") 

mouse.Icon = "rbxasset://textures\\GunCursor.png" 
mouse.Button1Down:connect(function() onButton1Down(mouse) end) 
end



bin.Selected:connect(onSelected) 
bin.Deselected:connect(onDe)