Trust and friendship

So the last two weeks at church a students of the class I'm just started teaching gave amazing talks that over subjects that have been on my mind. The first student talked on friendship which he said that friendship and charity are interchangeable, and this week was that trust and faith are interchangeable. I realized that two years ago I made more friends and in the past two years I lost probably the same amount of friends...and just have more acquaintances than friends.  This week made me realizes that if I don't trust my family then how can I trust anyone else. If I don't have faith in my family then can I have faith in anyone else???