Before doing anything we often think what will happen? If I study, what will happen? If I don't study what will happen? If I help someone Hot wheel happen? If I don't help what will happen?
Thinking too much like this is not useful. If we don't try nothing will happen. Only by working hard can we become successful in life. If we just sit idle and keep thinking, nothing good will happen. That's why we should stop worrying too much and do our sincerely.