Trust is ever earned, and should not be demanded. Beware of people in your life who become indignant when you question something they did. Character really does matter, and what you are over time speaks louder than the words you say.
Psalm 111 states that deep respect for the Lord is the beginning of wisdom. Choose those who you trust with your life slowly and carefully. A friend who is a sincere Christ follower is a good place to start.
It is ok to BE a character in your personality. Just make sure that your TRUE character is on display over time. What you say you will do, do it. What you commit to, get it done. Let the respect for God guide your "yes" and "no" this week!