I thought you did flash loan like on this video https://www.youtube.com/watch?v=ILBP38JrjTw
but I think I am wrong.
according to this post, twitter really did the magic too because twitter might be one of your monitoring tools, alongside your strategy to monitor exchange's hot wallets or deposit wallets. so, twitter is not that bad. Please keep updating this thread, especially on #1. I love being motivated by reading something like this. and good luck on your new journey.