Don't risk it

 

Parshas Hashavua נצבים ובחרת בחיים דברים ל:י"ט The  חרדים quotes a תשובת הר"ן who writes that the מצוה of ובחרת בחיים is not only applicable to performing מצות. It also applies to worldly matters. If one has a choice between a risky or safe way and he chooses the safe way he is מקיים the מצוה of ובחרת בחיים (even when risk is minimal) By canceling your ticket to Uman you will be מקיים  the מצוה of ובחרת בחיים