It sucks that this happened to you. My LN apps got hacked way too many times to count I did loose large amounts of bitcoin due to my own bugs but never a huge amount like 4btc.

All I know is that if you keep at it, you'll make so much more which is what happened in my case.

Appreciate you, stay safe, take care of your family and keep working and doing good things. You'll win in the end.