Hello new here, my slingshot isn't working properly, someone please help me?

Ok so I have a FE compatible slingshot but the pellets are launching the wrong way when I click, here are the scripts:

local debris = game:service("Debris")
pellet = script.Parent
damage = 8

function tagHumanoid(humanoid)
    local tag = pellet:findFirstChild("creator")
    if tag ~= nil then
        while(humanoid:findFirstChild("creator") ~= nil) do
            humanoid:findFirstChild("creator").Parent = nil
        end

        local new_tag = tag:clone()
        new_tag.Parent = humanoid
        debris:AddItem(new_tag, 1)
    end
end

function onTouched(hit)
    local hitChar = hit:FindFirstAncestorWhichIsA("Model")
    local humanoid = hitChar:FindFirstChild("Humanoid")
    if humanoid ~= nil then
        local canDamage = true
        local tag = pellet:FindFirstChild("creator")
        if tag then
            local creator = tag.Value
            local player = game.Players:GetPlayerFromCharacter(hitChar)
            if creator and player then
                if creator == player or (creator.Team and player.Team and creator.Team == player.Team) then
                    canDamage = false
                end
            end
        end
        if canDamage then
            tagHumanoid(humanoid)
            humanoid:TakeDamage(damage)
        end
    else
        damage = damage / 2
        if damage < 1 then
            connection:disconnect()
            pellet.Parent = nil
        end
    end
end

connection = pellet.Touched:connect(onTouched)

r = game:service("RunService")
t, s = r.Stepped:wait()
d = t + 2.0 - s
while t < d do
    t = r.Stepped:wait()
end

pellet.Parent = nil

Tool = script.Parent VELOCITY = 85

local Pellet = Instance.new("Part") Pellet.Locked = true Pellet.BottomSurface = 0 Pellet.TopSurface = 0 Pellet.Shape = 0 Pellet.Size = Vector3.new(1,1,1) Pellet.BrickColor = BrickColor.new(2)

Tool.PelletScript:clone().Parent = Pellet

function spawnSound(sound) local s = sound:clone() s.Parent = sound.Parent s:Play() s.Ended:connect(function () s:Destroy() end) end

function fire(mouse_pos)

spawnSound(Tool.Handle.SlingshotSound)

local vCharacter = Tool.Parent
local vPlayer = game.Players:playerFromCharacter(vCharacter)

local head = vCharacter:findFirstChild("Head")
if head == nil then return end

local dir = mouse_pos - head.Position
dir = computeDirection(dir)

local launch = head.Position + 5 * dir

local delta = mouse_pos - launch

local dy = delta.y

local new_delta = Vector3.new(delta.x, 0, delta.z)
delta = new_delta

local dx = delta.magnitude
local unit_delta = delta.unit

local g = (-9.81 * 20)

local theta = computeLaunchAngle( dx, dy, g)

local vy = math.sin(theta)
local xz = math.cos(theta)
local vx = unit_delta.x * xz
local vz = unit_delta.z * xz


local missile = Pellet:clone()




missile.Position = launch
missile.Velocity = Vector3.new(vx,vy,vz) * VELOCITY

missile.PelletScript.Disabled = false

local creator_tag = Instance.new("ObjectValue")
creator_tag.Value = vPlayer
creator_tag.Name = "creator"
creator_tag.Parent = missile

missile.Parent = game.Workspace
missile:SetNetworkOwner(vPlayer)

end

function computeLaunchAngle(dx,dy,grav)

local g = math.abs(grav)
local inRoot = (VELOCITY*VELOCITY*VELOCITY*VELOCITY) - (g * ((g*dx*dx) + (2*dy*VELOCITY*VELOCITY)))
if inRoot <= 0 then
    return .25 * math.pi
end
local root = math.sqrt(inRoot)
local inATan1 = ((VELOCITY*VELOCITY) + root) / (g*dx)

local inATan2 = ((VELOCITY*VELOCITY) - root) / (g*dx)
local answer1 = math.atan(inATan1)
local answer2 = math.atan(inATan2)
if answer1 < answer2 then return answer1 end
return answer2

end

function computeDirection(vec) local lenSquared = vec.magnitude * vec.magnitude local invSqrt = 1 / math.sqrt(lenSquared) return Vector3.new(vec.x * invSqrt, vec.y * invSqrt, vec.z * invSqrt) end

Tool.Enabled = true function onActivated()

if not Tool.Enabled then
    return
end

Tool.Enabled = false

local character = Tool.Parent;
local humanoid = character.Humanoid
if humanoid == nil then
    print("Humanoid not found")
    return 
end

if humanoid.Health <= 0 then
    return
end

local targetPos = humanoid.TargetPoint

fire(targetPos)

wait(.2)

Tool.Enabled = true

end

script.Parent.Activated:connect(onActivated)