I'm glad you liked the game :) And don't feel discouraged, do better next time!
The arrowbox is actually something as the creeper in Minecraft – making the game more interesting, a bit punishing, but overall more engaging, of course I should make the second arrowbox level easier – it's the final level (it's the one on the game banner, isn't it?) and I tend to make the final level way too difficult... At least you can be satisfied that you've seen the whole game except a win-screen :) And your English is totally fine (anyway, I'm czech 🇨🇿 :D)