Help with collectionservice

[super_steambath (HorikitaIshikawa)]

1. What do you want to achieve?
   Make leaves move
2. What is the issue?
   script fires multipie times depend on amount of leave part
3. What solutions have you tried so far?
   I tried to slove it via forum,but no progress yet

local collectionservice = game:GetService("CollectionService")

local Leave = collectionservice:GetTagged("Leaves")

for _,v in pairs(Leave) do

	local leaves = v
	print(leaves)
	v.Position = Vector3.new(v.Position.x, v.Position.y-0.2, v.Position.z)
	x = 0
	z = 0
	T = -99999
	tall = leaves.Size.Y / 2
	math.randomseed(tick())
	rand = (math.random(0,20))/10
	task.spawn(function()
		
	while true do
		x = leaves.Position.x + (math.sin(T + (leaves.Position.x/5)) * math.sin(T/9))/10
		z = leaves.Position.z + (math.sin(T + (leaves.Position.z/9)) * math.sin(T/18))/6
		leaves.CFrame =
				CFrame.new(x, leaves.Position.y, z) * CFrame.Angles((z-leaves.Position.z)/tall, 0,(x-leaves.Position.x)/-tall)
		wait()
		T = T + 0.12
	end
	end)
end

[VonsRevenges (Von)]

Put everything in a function and call it passing each leaf as a parameter:

local CollectionService = game:GetService("CollectionService")
local leaves = CollectionService:GetTagged("Leaves")

local function moveleaf(leaf)
    local x, z, T = 0, 0, -99999
    local tall = leaf.Size.Y / 2
    leaf.Position = Vector3.new(leaf.Position.x, leaf.Position.y-0.2, leaf.Position.z)
    math.randomseed(tick())
    local rand = (math.random(0, 20))/10

    task.spawn(function()
        while true do
            x = leaf.Position.x + (math.sin(T + (leaf.Position.x / 5)) * math.sin(T / 9)) / 10
            z = leaf.Position.z + (math.sin(T + (leaf.Position.z / 9)) * math.sin(T / 18)) / 6
            leaf.CFrame = CFrame.new(x, leaf.Position.y, z) * CFrame.Angles((z - leaf.Position.z) / tall, 0, (x - leaf.Position.x) / -tall)
           task.wait()
            T = T + 0.12
        end
    end)
end

for _, leaf in pairs(leaves) do
    moveleaf(leaf)
end