Goal: clear all the jelly and collect all ingredients and reach 66,000 points to complete the level.
Tips: the first level in the Watermelon Waves chapter (Episode 169), here you need to remove 36 jellies and bring down 2 cherries. Not necessary to process the keys right away; instead, removing the cream/icing, especially the ones in the bottom of the left side is the priority. The keys would be most likely processed along the way and those aforementioned cream are hard to do within 18 moves. So do only special candies and combos here. And you need big ones; things that can sustain cascading effects. You'll need all the help you can get. See how this level is done in video below. Good luck.
Candy Crush Saga Level 2511 walkthrough video