1 star: 20000 points
2 stars: 26000 points
3 stars: 32000 points
Your problem here is not much time to get a good bit of points. Try to make a 4 match or color bomb to beef up your score early, but remember until you break through the block wall, the chocolate will not grow until there is candy next to it. If you don’t break through the 3 shot blocks and get down to the bottom, you have a lot less room to score and a lot less time to do it, so it is in your best interest to push through it earlier.
Patricia Frederick’s Tips for Candy Crush Level 145
Hit the blocks with anything you can make to open up more room for you to create some special candies—striped candies, wrapped candies, everything will help. And grab as many +5’s as you can.