If you believe in yourself, people around you will believe in you too. There is nothing magical about becoming a confident assured person. The real magic happens when you can be that the confident assured person without being obnoxious at the same time. I'm partly kidding there, but there is an element of truth there.
I had a young tradesman in my office recently who wants to work with me. He is very confident and very self-assured. He also has an inflated sense of self-worth. While we talked, I reviewed his price list of what various projects would cost if he was charging me, and I laughed. His numbers were insane for my area. He assured me, that he is so good, that he would be able to demand those numbers. I wasn't buying it.
Last week, he went to test for his Master electrician's license. He failed. Ouch, but that's what happens when you are over-confident and over-self-assured. It comes back to bite you. My hope is that his story doesn't end here. I hope that he takes this simple lesson to heart.
You can believe in yourself. You can be confident in your skill level, and that's perfectly OK. One of the quirky things about my personality is that I don't need a great deal of attention or adulation from outside of myself. My confidence is solely within, but anyone around me will tell you I'm a very confident person. Another thing they will tell you is that I never talk about my skill-level unless I'm asked a question. I'd rather demonstrate than bloviate.
When I go into a completely new life experience without the benefit of knowing what is about to happen, it's uncomfortable. It's a little unnerving, but in order to grow and expand my life experience, I have to have that uncomfortable period where I'm learning the ropes. Once I get past those initial uncomfortable periods, real learning can take place. With each new life lesson, I gain more experience. With enough experience, I should be getting better at whatever it is that I'm doing. At some point, I should be confident.
When you develop your skills in whatever industry you participate in, as you learn, be confident. Be open to learn, grow and improve, but don't feel awkward or uncomfortable in the knowledge that you are good at what you do. Your belief in yourself will inspire belief in you from the people you are in contact with. Nobody wants a wishy washy real estate agent. They also don't want one who promises the moon but doesn't deliver. I find that the moon promisers are often hiding a lack of confidence. Be confident, believe in yourself, provide exceptional service and be gracious with those who recognize your skill-set, and people will be drawn to you like a magnet.