I'm 27.... (if that has any bearing on anything?)
Your competitors are any businesses offering any of the services you do. So for instance one of your services is web design & development, a quick google search brings up millions of web designers such as these guys
Digital Agency - Digital Media Agency - The Distance who also offer web design & development and have been listed on countless websites as having one of the best sites currently on the web. What I'm trying to say is that you could be the best coder in the world but with a site that doesn't portray you full ability, nobody will ever know.
(I'm trying to help rather than criticise) :)