The bet I usually take when Munich play is Lewandowski scoring because the odds for this bet are not bad at least @1.5 but today Lewandowski didn't score
The strategy is next to place the same bet by doubling the bet amount this method is usually quite successful to cover losses and make a little profit, you can try it if interested.
But why are you only doubling your bet at this odds? To claim a profit, you must raise the bet more sharply, doubling only gives a refund after the first increase, and then the loss follows:
100 x 1,5 (+50 potential profit -100 loss)
200 x 1,5 (+0 potential profit -300 loss)
400 x 1,5 (-100 potential profit -700 loss)
etc.
Mathematically, you are losing very quickly, maybe you meant some other way of doubling?