Have you ever had something in your life that you wished nobody would know about? Then, because you needed to talk to somebody, you told a trusted friend. To your utter dismay, this friejd went and told it to all your friends. What would you do? To whom do you confide to?
I have often being told that the best way to keep a secret is to tell nobody. By telling a single person about it, a gossiper might hear it and spread it like wild fire. Most often the secret is amplified on the way and what you said is taken out of context. One of my friends told me she wished a guy would marry her and so she told her girlfriend. The later went on and told the guy and she was completely embarassed when she saw this guy.
I think the best person to trust with a secret is yourself. Keep it to yourself and if you can’t keep it then just forget about it. It is often said that walls have ears and what is said in the dark would come out in the open. Meditate more on the word of God (Joshua 1:8) and God would take care of all your problems. ( 1 Peter 5:7)