thank you so much! you could try watching the playthrough video in the description, it might help :)
For what it's worth, I also got stuck at that point; I just couldn't seem to jump that far. (Lots of landing on the rectangle.)
On the other hand, it's such a relief to play a platformer that doesn't actively hate the player. Soothing music and color scheme, friendly font, encouragement, adequate checkpoints...love it.