The worst mistake I've ever made is using a bot to automate my bets. I tell you, I still regret it until today because I lost Lot's of funds even funds that were not in bankroll
I wonder how can you lost your fund that is not in the bankroll? Now I am curious on how you use the autobet function. As far as I know you are the one setting the system and it has a stop function where when it reach your limit btc, it will stop. I think Bot is fine and there is something wrong with you instead.