We’re our own worst critics. People tend to either think they’re brilliant (look at all those American/British/Australian Idol contestants!) or they’re super critical. In my experience, the people who have a high opinion of their talents are usually those who have the least cause to be so thrilled with themselves. On the flipside, the people who really do have talent are often the ones with self-doubt and who question and critique themselves mercilessly.
As to whether you’re talented, look at the people giving you praise. If it’s family and friends, take it with a large grain of salt. Family and friends love us and we can do no wrong. Look again at all those Idol contestants. Family and friends let them go on television and humiliate themselves! However, if it’s your voice coach, your singing teacher, people who work in a recording studio and work with vocalists every day, then listen to them and trust they know what they’re talking about. As I said to start with, we are our own worst critics.