I have seen a few posts in the past two weeks about players being hopelessly stuck on levels that until recently you would eventually pass with a lot of patience and trying. It looks to me like the latest algorithms are circular, repeating indefinitely without ever including a lucky board, for some levels.
Which level are you stuck on? How many times have you played it?
Please do not give in and pay your way out with real money. Use boosters and gold if you have any left, but never real money, as this will encourage King to continue pay-walling levels! And it will lose you your adverts in the game, if you are lucky enough to have them.