I didn't really understand just how unhappy I was, and how unhappy I was making those around me and and those who cared about me, until I started practicing Mahayana in earnest.
This insight changed everything for me. Or, rather, it opened up a new life for me.
Thanks to the help of generous sponsors (most of them from DharmaWheel), I'm doing a Vajra Armor (Dorje Kotrab) self-retreat this summer. May the merit be yours!