Level 2411 is absolute #$&@* patience my backside, I've never gotten more than 15 of the 18. The game won't give more than 1 block at a time, little hard to make combos with 1 block. Been stuck on this level for 3 weeks, tried multiple stratergies, I uninstalled candy crush & soda for exactly this same reason, games are supposed to be relaxing & fun, this most definitely is NOT. I quit playing this game for OVER a year because it was too aggravating, FYI, I WILL NEVER spend money on ANYTHING that ticks me off to this degree !
Ughh!! Sounds like you're really stuck on that level I would definitely recommend that you take a break from Pet Rescue. Life is too short to be upset over a game.
If I get stuck in a game I normally leave it for some days or I try the FB version as there are sometimes differences between the formats that you can use to your advantage.