Aiming Down sight script problem?

I recently wanted to fix up an aiming down sight script to my pleasure.I wanted it to where the player has to wait a little before UnAiming without it glitching so i tried to make up a debounce, i ended up coming up with this. It worked,But of course it came with a catch and that was that UnAims by itself. So i was wondering if someone could help me fix this to where it doesn't UnAim by itself? Here is the script.

local Tool = script.Parent
aiming = false

Tool.Equipped:connect(function(Mouse)
    Mouse.Button2Down:connect(function()
    if not aiming  then 
        aiming = true
        Tool.Aim.Value = 0.1
        Tool.ZoomedIn.Value = true
        Tool.Parent.Humanoid.WalkSpeed = 10
        Tool.GripPos = Vector3.new(0, 0.1, 0)
        wait(0.07)
        Tool.GripPos = Vector3.new(0.2,0,0)
        wait(0.07)
        Tool.GripPos = Vector3.new(0.4,-0.0,0)
        wait(0.07)
        Tool.GripPos = Vector3.new(0.6,-.1,0)
        wait(0.07)
        ----------------------------------------------
        game.Workspace.CurrentCamera.FieldOfView = 70
        game.Workspace.CurrentCamera.FieldOfView = 65
        wait(0.07)
        game.Workspace.CurrentCamera.FieldOfView = 60
        game.Workspace.CurrentCamera.FieldOfView = 55
        wait(0.07)
        game.Workspace.CurrentCamera.FieldOfView = 50
        game.Workspace.CurrentCamera.FieldOfView = 45
        wait(0.07)
        game.Workspace.CurrentCamera.FieldOfView = 40
        game.Workspace.CurrentCamera.FieldOfView = 35
        wait(0.07)      
        game.Workspace.CurrentCamera.FieldOfView = 30
        wait(1)
       aiming = false

if aiming == true then repeat wait() until aiming == false 
    else do
        game.Workspace.CurrentCamera.FieldOfView = 30
        game.Workspace.CurrentCamera.FieldOfView = 35
        wait(0.07)
        game.Workspace.CurrentCamera.FieldOfView = 40
        game.Workspace.CurrentCamera.FieldOfView = 45
        wait(0.07)
        game.Workspace.CurrentCamera.FieldOfView = 50
        game.Workspace.CurrentCamera.FieldOfView = 55
        wait(0.07)
        game.Workspace.CurrentCamera.FieldOfView = 60
        game.Workspace.CurrentCamera.FieldOfView = 65
        wait(0.07)
        game.Workspace.CurrentCamera.FieldOfView = 70
        -----------------------------------------------
        Tool.ZoomedIn.Value = false
        Tool.Aim.Value = 15
        Tool.Parent.Humanoid.WalkSpeed = 16
        wait(0.07)
        Tool.GripPos = Vector3.new(0.6,-0.1,0)
    wait(0.07)
        Tool.GripPos = Vector3.new(0.4,0.0,0)
    wait(0.07)
        Tool.GripPos = Vector3.new(0.2,.0,0)
    wait(0.07)
        Tool.GripPos = Vector3.new(0, 0.1, 0)
    end
    end
end
end)
end)