I am currently on level 20705. Since Thursday (January 1), ads are not as plentiful as they have been, so accumulating boosters needs much patience & time.
I just played a new episode & the super bombs (which I already had) were seldom close together, so it was necessary to use switches or lollipops. Also, perhaps only one or two levels in the episode offered an ad to watch at the beginning of the level for extra boosters, whereas before I got an ad almost every level. And now watching an ad gets only ONE extra move, so I had to use gold bars to buy 5 extra moves.
This last episode greatly depleted my booster and gold bar supply.
Please change the offerings to what they were last year.