The best betting strategy to use is proportional betting. Proportional gives you the advantage of being able to stay in the game longer unlike martingale or an all in betting strategy. You'll still be able to grow your bankroll faster using proportional betting compared to fixed wager. Proportional betting will require you to have a solid betting plan and discipline. It will also test your patience since you are only betting 1% to 5% of your bankroll. The good thing is this allows you to protect your bankroll. But this slow and steady approach can be all worth it in the long run.