It is not good to gamble without any limit. Although it is known trick to increase your bet to cover the losses, it works for one or two times when the luck is on your side, but your cant promise that everytime it will work out for you. Cause once you start to loss this bigger bet, you will realise you need a bigger one and this will never stop.
If higher bet would have meant a higher chance of winning, then gambling websites would have no profit at all. The chances are the same no matter if you place a high or a low bet! It's only your luck that can make you win or lose many times in a row. Anything is possible, but strategies are never working.