You are not making any sense here. If you really didn't care about how much you lost, you wouldn't really care about the manner in which you lost any of it either. 15-17 loss streak in slots with a high house edge isn't really that rare.
Personally, I have observed 25+ loss streaks on dice with a way lower house edge with a multiplier of 1.98x which was horrendous luck, but I was flat betting small amounts thanks to which I didn't lose much.
Bet big is a best way to lose big money quickly because we never know how a win streak or lose streak comes with us. We never know when a win streak or a lose streak will stop so bet big with belief that a lose streak will stop and turn to a win with that big bet, is risky too.
Your example is useful for gambling responsible, from bet capital to discipline with your bet style. Same bet capital for each bet and don't increase it too be bigger just because you already have a long lose streak.
It's hard to be disciplined like you and another tip to be responsible gambling is self-limit your total bets each day, total bet capital each day. Lose or win, if you already hits your own limits for betting, quit gambling and do other things.