I felt frustrated. I would log in a few times a day and just casually tried but failed. It has become very hard to win boosters and I had none ( maybe I used everything to try to pass and finished them all). Finally it happened. I later got stuck on other levels. It's very frustrating
Well I finally passed it. I have to say it wasn't a great battle. Nothing special or grandiose. After 100 tries 1 was somehow successful. So I have no tips for you, which is very disappointing - it wasn't smart, just luck or candy crush algorithm