Focus on getting vertically-stripped candies to break the marmalade guarding the wrapped candies on the first few moves. Then, just combine the two wrapped candies. This should open up new candies to the bottom part and possibly trigger a chain reaction to the other side (if you combine them near the center).
Clearing the three-layer meringues are your top priority, as fewer meringues means more candies on the bottom side. While clearing the meringues and jellies, don't forget to look up for color bombs, and if possible, combine it with stripped candies!
While clearing the bottom jellies, don't forget to be mindful of the matches available. If possible, try to avoid making a match that would give no moves at the bottom, or else it will be very difficult to free them up again.