Stop protecting yourself from family, friends or colleagues.
We spend a lot of energy in protecting ourselves from getting cheated financially or emotionally. We are normally on our guard, and our alert mind is tuned to look out for anything fishy. We feel deep discomfort in the feeling of being cheated.
Most people in your life are not going to cheat you. A few may cheat you slightly. And very rarely will someone cheat you in any significant way. If you are open to being cheated slightly, and are willing to take the risk of being cheated significantly sometime, you can save a lot of energy, be more at peace, and have much better relationships. It’s not worth being careful all the time.