Your the man, you rock, excellent, best thing ever, your the bees knees, etc, etc, etc...
Now if people are saying this about you, that's fine, but if you think this way about yourself you are doomed to failure!! Disagree with me? That's fine, go ahead and fail, lol.
This being said confidence is a must for becoming a success online, however there is a big difference between confidence and cockyness. And as I'll explain it is ultimately self defeating in two huge ways.
The first critical point I have to make here is you really are shooting yourself in the foot, plus you look like a douchebag doing it. If your confidence turns into over confidence, and than morphs into cockyness the quality of your product will begin to suffer. Your work will become shoddy. And your self drive will start to wane. After all your king midas right. All you do is awesome. Why even check the work, or ask for opinions. It's me, it rocks right??
Than the I'll do it tomorrow mentality will start to creep in.
Ehhhhhh I can do it tomorrow, I will nock that out in no time. Besides people will wait for me, even if my competition beats me to it. I do it better, so it won't matter. I speak and the world stops to hear me. For I am the shiznit. Might as well just sell your websites and go offline, because sooner or later your competition will catch up and pass your prideful butt like your standing still.
Ok I'm getting a bit carried away, but just take a look around the world of online business. Look at your average ad. I guarantee most of these people are high on themselves. One key thing to look for is humility and humbleness, it's easy to spot. More on that at the end of the other reason why over confidence will kill ya.
People aren't blind. They may fall for the pie in the sky claims you make that your the end all be all of business online. But just like any organization, army, and structure for that matter it all starts from the top down. If the creator/owner of a business is as described above than the business is doomed to fail and really does not see you as a someone to work with. They see you as followers, not partners.
This leads into the second way how being prideful will destroy your business. It means your also closed to new ideas. New or different ways of doing. And god forbid you admit you don't know it all, I mean heck you might learn something. Can't have that,, can we, you would be admitting other people are useful.
If you notice people leave almost as soon as you get them into your business, than this could be a early warning sign of you non humility. And just as branding yourself in a good way can explode your business, branding can also bite you in the butt. All branding is how your perceived, and you can just as easily be seen as a negative influence on the industry as a positive one.
Now this just doesn't apply to potential users and customers of your products, this can easily translate into other companies and professionals you have the potential to work with. If you don't value everyone, than you value nothing.
So to summarize I would highly recommend the next time your tooting your own horn, record it and play it back. You might be surprised at the actual notes and music your putting out for the world to hear.
And as my parents and others have said and taught, Be humble in all things.