Straight answer, YES. Unfortunately, there's no strategy to increase your chance of winning there.

So what else to do now? The strategy you need how to manage properly your bankroll. It now depends on how you treat your every session like if you are on a winning streak, try to take a break and called it a day, or in the event of losing, be calm and don't chase the loss and like the first one, called it a day.

There's a thing called beginners luck and it's usual to experience those good winnings at the start. But on the other hand, a bad day might strike so be responsible enough not to challenge it.