Oh...OK.....I guess I'll chime in to....when I went the online route of Voices & V123 I was auditioning, doing custom demos EVERY DAY....I lost count after about 500 demos with no gigs....but you know what? That was then, this is now. I can now say that I am a full-time WORKING voice talent.
I still do online auditions - am a member of both Voices & V123 (& others), have clients of my own, I do marketing online & "off"...This is my job. This is what I do. I'm in this for the long run, and all those auditions were GREAT practice.
It all comes back to what Connie & others have said. You have to LOVE voice over to keep keep at it & YES, evaluate yourself, where you were and where you are going, take constructive critiques from those you respect and keep at it.
BUT if you're only in this "for the money" you're in it for the wrong reason. I don't say that in a "hoighty-toighty" (sp?) way, but in the practical aspect of being able to find something that YOU love to do and the money will follow 'cause you'll be spending all your time & energy on it!
VO is what I do. I spend pretty much all my time figuring out ways to market myself, improve my skills & meet others who are in this field...oh yeah, and recording scripts for clients & making them happy! It's FUN for me! and THAT's the key. If you don't enjoy it - and that includes all the auditions - it may not be what you are meant to do.
This is NOT like any other biz, and I don't think you should be worried at all that you've done 300 custom demos with no apparent results. You ARE getting better, just by virtue of the fact that you've recorded 300 scripts!
My $0.02
Peace!
Liz