Thank you so much!
About that getting stuck part, I'm so sorry, the game has an issue that for some reason the jump height is off by a few pixels depending on your computer. Don't worry you got it right, it was the game's fault.
But thank you for giving it a try after all! If you feel like it, start again and try to make that jump without falling in the hole hehe, maybe you can get some fun out of it!