Reduce Trail's WidthScale over time?

EDIT: Problem solved. Don't answer to this question.

Hello! I'm trying to script a trail into my sword and I'm struggling to make it so that the trail will have its WidthScale reduced over time. My goal is to make it 0.1 and then remove the trail after some time that the animation of the Attack has been done.

So far, though, it doesn't seem to be working. I'd be glad to receive some help! Thanks ahead.

function Attack()
    Damage = DamageValues.SlashDamage
    Sounds.Slash:Play()
    script.Parent.Handle.Trail.Enabled = true
    script.Parent.Handle.PointLight.Enabled = true
    script.Parent.Handle.ParticleEmitter.Enabled = true

    if Humanoid then
        if Humanoid.RigType == Enum.HumanoidRigType.R6 then
            local Anim = Instance.new("StringValue")
            Anim.Name = "toolanim"
            Anim.Value = "Slash"
            Anim.Parent = Tool
        elseif Humanoid.RigType == Enum.HumanoidRigType.R15 then
            local Anim = Tool:FindFirstChild("R15Slash")
            if Anim then
                local Track = Humanoid:LoadAnimation(Anim)
                Track:Play(0)
                wait(Track.Length)
                wait(2.0)
while true do
    workspace.ClassicSword.Handle.Trail = NumberSequence.new(1,0.1)
    wait(0.1)
end
                script.Parent.Handle.Trail.Enabled = false
                script.Parent.Handle.PointLight.Enabled = false
                script.Parent.Handle.ParticleEmitter.Enabled = false
            end
        end
    end 
end