Okay, you face an immediate threat with the chocolate as if you can’t remove it from the top, it will block off all candy from dropping down and you will run out of pieces unless you can match up some striped candies to shoot through the chocolate. An ideal situation is a color bomb and striped candy mix to clear out a lot of the 2 hit blocks and the chocolate.
Here is a walkthrough video for Candy Crush Level 149
Patricia Frederick’s Tips for Candy Crush Level 149
If possible, make matches along the blocks to weaken them or make matches to enlarge the opening if you can. If the chocolate closes off the top, make anything that will go vertically to reopen it—vertically striped candy matches, a striped/wrapped combo, 2 striped candies…whatever you can. Do not focus on breaking all the chocolate however; create a color bomb /striped candy combo to satisfy one of the orders and that should remove the chocolate. Then keep clearing the board to collect the blues.