how to re-size a r6 player im getting a glitch when attempting?

wait()
local mouse = game.Players.LocalPlayer:GetMouse()
local player = game.Players.LocalPlayer
character = player.Character
db = false
shooting = false
dmgdebounce = false
damage = 60
myname = player.Name
if game.Players.LocalPlayer.data.dmg then
    damage = damage + game.Players.LocalPlayer.data.dmg.value / 10
end

mouse.KeyDown:connect(function(key)
    key = key:lower()
    if key == "g" and db == false and shooting == false then
        shooting = true
        if db == false then
            db = true
        character:FindFirstChild("Left Arm").Size = Vector3.new(1.2, 2.4, 1.2)
        local joint = Instance.new("Motor6D")
        joint.Parent = character.Torso
        joint.Name = "Left Shoulder"
        joint.Part0 = character.Torso
        joint.Part1 = character["Left Arm"]

        character:FindFirstChild("Right Arm").Size = Vector3.new(1.2, 2.4, 1.2)
        local joint1 = Instance.new("Motor6D")
        joint1.Parent = character.Torso
        joint1.Name = "Right Shoulder"
        joint1.Part0 = character.Torso
        joint1.Part1 = character["Right Arm"]

        character:FindFirstChild("Left Leg").Size = Vector3.new(1.2, 2.4, 1.2)
        local joint2 = Instance.new("Motor6D")
        joint2.Parent = character.Torso
        joint2.Name = "Left Hip"
        joint2.Part0 = character.Torso
        joint2.Part1 = character["Left Leg"]

        character:FindFirstChild("Right Leg").Size = Vector3.new(1.2, 2.4, 1.2)
        local joint3 = Instance.new("Motor6D")
        joint3.Parent = character.Torso
        joint3.Name = "Right Hip"
        joint3.Part0 = character.Torso
        joint3.Part1 = character["Right Leg"]

        character:FindFirstChild("Head").Size = Vector3.new(1.2, 2.4, 1.2)
        local joint4 = Instance.new("Motor6D")
        joint4.Parent = character.Torso
        joint4.Name = "Neck"
        joint4.Part0 = character.Torso
        joint4.Part1 = character["Head"]





    local originaldamage = player.data.dmg.Value
    player.data.dmg.Value = player.data.dmg.Value * 5
    wait(60)
    damage = originaldamage



            wait(15)    
            db = false
    shooting = false
        end
    end


end)

it makes your entire body combine into one small head thing its weird...