Applying X-Directional BodyVelocity using Y Orientation?

trying to apply bodyvelocity to make a "charge forward" effect in a 2D environment. it doesn't seem to work; i'm comparing the LowerTorso's Y-orientation -- if it's > 90, it goes one way, and if it's < 90, it goes the other way. can't compare the Vector3 as that's two userdata values. here's what i'm trying, and it's kind of worked before, but it's not working at all now:

local myHumanoid = char:FindFirstChild("Humanoid")
local Fist = char.RapierBlade
local bv
local myTorso = char:FindFirstChild("LowerTorso")
local target = myHumanoid.TargetPoint 
local direction = (target - Fist.Position).unit

UIS.InputBegan:Connect(function(Input, IsTyping)
    if IsTyping then return end
    local keypressed = Input.KeyCode
    if keypressed == Enum.KeyCode[keyDash] and debounce and debounceDash then
        debounce = false
        debounceDash = false
        print(plr.Name..' has pressed the '..keyDash..' key. Yay!')
        local loadanimation2 = char.Humanoid:LoadAnimation(animationDash)
        loadanimation2:Play()

        if myTorso.Orientation.Y < 90 then

        bv = Instance.new("BodyVelocity")
        bv.P = 150000
        bv.maxForce = Vector3.new(5000, 5000, 0)
        bv.velocity = Vector3.new(80, 0, 0)
        bv.Parent = myTorso

        myTorso.CFrame = CFrame.new(myTorso.Position, myTorso.Position + direction) 

        wait(0.59)
        bv:Remove()
        debounce = true
        wait (.3)
        debounceDash = true
        end

        elseif myTorso.Orientation.Y > 90 then
        bv = Instance.new("BodyVelocity")
        bv.P = 150000
        bv.maxForce = Vector3.new(5000, 5000, 0)
        bv.velocity = Vector3.new(-80, 0, 0)
        bv.Parent = myTorso

        myTorso.CFrame = CFrame.new(myTorso.Position, myTorso.Position + direction)

        wait(0.59)
        bv:Remove()
        debounce = true
        wait (.3)
        debounceDash = true
        end
    end)