i've been Working in an optimized script ffor my sinking ship game but it just doesn't work. No error messages. No warnings. F in the chat.

--variables

local ship = script.Parent
local P = ship.PrimaryPart
local SeaLevel = 0

--scripting

local function sink()
    while true do
        local X = P.Position.X
        local Y = P.Position.Y
        local Z = P.Position.Z
        if ship.Trigger1.Position >SeaLevel then
            ship:SetPrimaryPartCFrame(
                P.CFrame * CFrame.Angles(
                    math.rad(.01),0,math.rad(.01)
                    )
            )
            ship:SetPrimaryPartCFrame(
                P.CFrame + Vector3.new(
                    X,Y -.05,Z
                    )
                )
            wait()
        end
    end
end