So, I’ve been reading about card counting and blackjack. I’m trying to get down to 25-30 seconds counting through a deck( I’m at 28) and perfecting basic strategy (soft hands and splitting decisions). I need a good betting strategy. I have a modest bankroll of 250$ and I know that my risk of ruin is high. Please give me tips on betting strategy. Any other help is also welcome.
P.s. – I’m using K-O because there’s no way that I’ll be able to convert to a true count while keeping track of the running count and estimating how many decks are left in the shoe. My minimum bet will be 5$. I’m going on a cruise and will be playing show games because the single deck that they offer pays naturals 6 to 5. they allow doubling after splitting, doubling on any two cards and re-splitting aces, but dealer hits soft 17.

Sorry, I know that it’s a long question, but I really want to hear from anyone with experience. Thanks!
sorry, i made a small mistake im at 38 seconds counting through a deck, not 28