How do I create a projectile script using raycast?

Hi, I've recently started learning scripting, I've been trying to solve this on my own for a while now but no luck. I don't know where the error is so I'll attach the local script and the server script so hopefully someone can help me. Right now I'm just trying to get the aiming done for the "SmallFireball" So ignore the "LargeFireball" remote event.

----------- Local Script -------------

-- Services --
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local UserInputService = game:GetService("UserInputService")

-- Variables --
Player = game.Players.LocalPlayer
repeat wait() until Player.Character
Character = Player.Character
Mouse = Player:GetMouse()

-- Settings --
IsTyping = false
ButtonDown = false
Key = nil
FireballCooldown = false

-- Script --
UserInputService.TextBoxFocused:Connect(function() -- User typing
	IsTyping = true
end)

UserInputService.TextBoxFocusReleased:Connect(function() -- User stopped typing
	IsTyping = false
end)


UserInputService.InputBegan:Connect(function(InputObj, gameProcessedEvent) -- Q is down
	if IsTyping == true then return end
		if InputObj.KeyCode == Enum.KeyCode.Q then Key = "Q"
			ButtonDown = true
			local timepassed = tick()
			while ButtonDown == true do
				wait()
if ButtonDown == false and tick() - timepassed < 3 and FireballCooldown == false then FireballCooldown = true print(tick() - timepassed) script.SmallFireball:FireServer(Mouse.Hit) print("small fireball fired") wait(2) FireballCooldown = false else -- Charging system small fireball

if ButtonDown == false and tick() - timepassed >= 3 then FireballCooldown = true print(tick() - timepassed) script.LargeFireball:FireServer(Mouse.Hit) print ("large fireball fired") wait(8) FireballCooldown = true end -- Charging system large fireball
	end


UserInputService.InputEnded:connect(function(InputObject, gameProcessedEvent) -- Q is up which turns ButtonDown to false
	if InputObject.KeyCode == Enum.KeyCode.Q and Key == "Q" then
		ButtonDown = false
		end
	end)
end
end
end)

----------Server Script for SmallFireball event----------

script.Parent.OnServerEvent:Connect(function(Player, Hit)
	local character = Player.Character or Player.CharacterAdded:Wait()
		local Fireball = Instance.new('Part')
		Fireball.Shape = Enum.PartType.Ball
		Fireball.Parent = workspace.Projectiles
		Fireball.CFrame = character.RightHand.CFrame
		local ray = Ray.new(character.RightHand.Position, (Hit.Position).unit *10)

		local BodyPosition = Instance.new("BodyPosition")
		BodyPosition.Parent = Fireball
		local IntersectedObject, position = workspace:FindPartOnRay(ray, character)
		print(position)
		BodyPosition.Position = position*5

		BodyPosition.MaxForce = Vector3.new(math.huge, math.huge, math.huge)
		game:GetService("Debris"):AddItem(Fireball, 20)
		
	end)

I've been trying with both BodyVelocity and BodyPosition but both didn't work for me. I appreciate any help you can give me.