Help My Discord Webhook For Chance Isnt Working?

So Im Making A Game With Luck And Im trying to make it so when someone gets a certain rng it sends in discord, but theres a glitch here the script. (Dont Mind all The Ifs)

Button.MouseButton1Click:Connect(function()
    tt.Value += 1 -- adds to total
    ttr.Value += 1 -- adds to total tis run
    repeat -- repeats picking random number and adding 1 to num until the random number is 1
        local ran = math.random(1,2)
        num += 1
        print(best2.Value)
        print(num)
    until ran == 1

    if num >= best2.Value then
        if num > best2.Value then
            best2.Value = num --if num is bigger than current best it will set the best to the current num
        end
    end

    if math.pow(2, num) >= 10000 then
        rng1.Value += 1
        if math.pow(2, num) >= 100000 then
            rng2.Value += 1
            if math.pow(2, num) >= 1000000 then
                rng3.Value += 1
            end
        end
    end

    if num <= best2.Value then
        jg.Text = "This bar is currently unavailable until next update(and this time i mean it)." --too lazy to add this part rn
    end


-- i cut out a chunk so this isnt super long

        local httpService = game:GetService("HttpService")
        local webhookUrl = "notgonnashare" -- Paste the webhook URL given by discord.

        local contentData = {
            ["content"] = ">>> "..plr.Name.." Just Got RNG: 1/"..math.pow(2, num)
        }
        local sentData = httpService:JSONEncode(contentData)
    if math.pow(2, num) >= 10000 then
        httpService:PostAsync(webhookUrl, sentData) -- send the data to the url in a JSON format.
    end
    num = 0 --sets num to 0
    if best2.Value >= 100 or num >= 100 then --checks if theres no glitch
        num = 0
        best2.Value = 0
    end
end)

But the problem is whenever someone gets 10000 chance then it sends the message but somehow the num goes up a bunch making the best go up and breaks the game and i have no idea how to fix this. Even If I Set num to 0 it doesnt seem to work.