When playing levels that aren’t nightmarishly hard, don’t use your boosters instead save them up for the very hard levels. I win the first try almost every time using this trick.
It will be helpful if you see the frame after every move,so that you don't miss any candy or colour bomb making chance which will eventually help you complete the level.
When Candy Crushing, and you're not sure of your next move... Never do the move that the game highlights! Unless it's the only move on the board, it will always be to your benefit to find another match to make for yourself.