Your main priority should be matching candies adjacent to the Icing and clear it as quickly as you can so that it becomes easier to detonate the Jelly Cakes. While you’re clearing the Icing you should also focus on making vertical Striped candies in the same column as the kernels and Jelly Cake.
Don’t worry about Jellies on the edges of the playing field because you will have cleared most of them by the time you detonate the Jelly Cake.
Match candies near the bottom of the playing field as often as you can. Doing this will shift the largest amount of candies, hopefully start a chain reaction and create new opportunities to make special candies. With candies of five colors on the playing field and the limited space you have it can be difficult to make special candies. Make as many special candies as you can and when possible combine them to maximize their effects.
While matching candies at the bottom it can be easy to ignore making special candies at the top of the playing field. So pause after every move and glance at the entire playing field to see whether you can make special candies.