Not really
For me I did not have any instructor but what I would do is to place a bet with comparatively lower loss and therefore I would just drag the bar down , ik the profit might be lower as compared to the high risk one 50-50 but usually I like to go slow and steady and at the same time I do like to keep updating or leaving the game for a while if I start loosing.
In that case, the loss would be higher as well but at the same time you will have better chances. You know the saying: slow and steady wins the race and in this case it would be your luck and strategy.
In my case, I prefer playing manually than using the auto bet feature, I'm using a variation of the martingale I make sure that I have a bankroll that can stand losing up to 10 bets, after losing four successive losses, I made a shift from roll under to roll over with a default 47% winning chances, I make sure that I shift in the right time before I used all my bankroll, it's still risky but exciting and of course no this is not a perfect method, I just create it on my own based on my instinct, it's still a game of chance, and soon the house edge will catch you.