I love this. I believe this too.
I definitely encourage you to follow your calling
I'm still trying to interpret my own calling. The more rejection and disappointment I endure and overcome, the stronger I know I'm getting. I feel like I'm being guided closer towards a path that's right for me. I'm trying not to force things and take the things I'm learning in stride. It's scary because I thought I had it all figured out but I guess I had to go through some things to really understand what isn't right for me.
I'm sorry about your friend.