WHAT THE FUCK.
I have to deal with a fucking bug that crashes my app only when I'm NOT looking for it.
I investigate another bug? Then BAM, here it is and crashes the app. And I have to start over again find the right conditions to not trigger it again.
I investigate that bug? Nope, everything runs as smooth as velvet.

It's like a Heisenbug, but the cat is dead in the box AND pissing all over the lab at the same time.

So.... yeah, making a Scratch clone (with more features) is frustrating and super hard.

Major problems include
- Drag&Drop from listbox to usercontrol - stress level : 3/10
- connect blocks when two blocks are close to each other - stress level : 10/10
- generate live code when there was a change in blocks editor - stress level : 9/10
- write a compiler or some interpreter that converts block code to real c# code - stress level : 10/10
- generate output by calling csc.exe - stress level : 1/10
- make code at least readable - stress level : 7/10