Bankroll management is everything, but the key is to never break your limits. Forget any excuses like it is a special day or it will only be done this time and never again. If you break your playing limits even once, you are at a huge risk to repeat it and repeating it is always easier the more times you do it.
Chasing losses is already a sign of poor bankroll management because it does nothing than make you lose more and more.
You could say that there is no bankroll management involved at that point, because someone who manages their bankroll will never chase losses. These two things are not compatible.
Your percentage allocation per bet is high for slot games which you can do hundreds of bets within a short time. If you allocate 1% of your capital per bet, it will take on 100 spins for you to lose your capital if you are unlucky to win in those spins. For sports betting, such percentage is fine and considered a good bankroll mananegemt.
People often doubt that possibility of unlucky streaks, but it is quite possible and does happen.