i dont think we have a strategy or idea to make our bet is safe, its all depends on our lucky
even you have awesome strategy but tou have bad lucky you will get lose
There is no such thing called a safe bet or investment in this world and everything comes with some risks. This gambling is made for having just fun so you should worry so much about the strategy or method instead just spend some of your free time to enjoy the games with little money and if you're lucky then you will surely win money otherwise just enjoyment.
I agree that even how safe you wanted to make for your first bet still in the end you will need to accept the fact that there is no way to avoid losing.
Much better if you will be just prepared on how you will gamble with your first bet and don't get too excited with it and bet affordable amount.
There is no safe way to bet for your first bet, 2nd bet and other turns of your bet.