The first thing you should do is clear the two Icing at the center of the playing field as soon as you can and if at all possible pop the kernel as well. Clearing the blockers at the center will create a larger space in which you can make special candies, making it easier to make them.
When you free the Striped candies at the edges of the playing field it can be difficult to activate them. Keep in mind that you can use special candies to hit them.
With candies of five colors on the playing field you shouldn’t have too many problems making special candies. It’s worth holding on to special candies until you can combine them because of the combination’s enhanced effect.
Match candies near the bottom of the playing field (or as low as possible) as often as you can. Doing this will shift the largest amount of candies and hopefully start a chain reaction that will create new opportunities to make special candies.
As for the Chocolate. As long as you prevent it from spreading too much it shouldn’t bother you.