If you don't believe in yourself, how do you expect anyone else to believe in you?

Keep building your skills:

The Path to excellence requires constant upgrading and skills development.

Get out of your comfort zone:

If you move beyond that area of comfort, even by a little bit, you start facing things which you are not exposed to before.

Be around the best:

 Cut yourself loose from people who don't support you and increase your contact with the people who do.

Set huge goals:

Not the normal, standard goals which you know you will definitely be achieving with a certain amount of work and effort. Aim heigher.