It's natural that you would want to share good things with others. There are many people who will pretend to be your well wishers but wouldn't like that something good is happening in your life. It's very difficult to trust someone. So what's the best thing to do? Keep things to yourself unless the person is a family member or someone whom you trust that the person wouldn't wish anything bad for you. Keeping things to yourself means you are protecting yourself from any negative situation. So we have to be very careful, think before you talk.