I thought this was the same topic Chipp Damage did some months ago.
And I have to echo Zircon entirely, although with much less credit to my name. Pretty much every day gets harder and harder for new people to get in - its for this reason I have come to stop disrespecting bands I've heard of entirely simply because I'VE HEARD OF THEM - that in itself is truly something to respect, if nothing else.
I'd say, right now, minimize your expectations down a WHOLE lot. Consider anything you get out of your efforts a trophy. I have ONE remix to my name and it isn't even that good, but you bet your ass I wear that Ocremixer title like a crown. With so many flooding every channel you can think of, the smallest achievement becomes precious. Keep that in mind.
Also consider how much you would really want to be on a major music label in the first place. Mo' Money, Mo' problems. You want to be like Michael Jackson? Look what happened to him. Elton John's lucky to be alive. Its all glitz and glamour on the outside, and on the inside you have to weigh on your shoulders an extremely demanding job that the entire world is literally watching you do. That's at least one major reason celebrities are insane.
I think of it like the Ancient Cave on Lufia II.
You got in? Great... let's see you get out.
Basically, just appreciate anything you get out of it. Don't be too proud if you end up writing shit for Barney The Purple Dinosaur on Ice or something. As much as it sucks, its a real job, and music jobs don't just rain from the sky. It is my opinion the Good Lord sees it fit to punish the pretentious for their overestimation by sticking them largely in positions they don't want to be in. Don't be too proud.
I think thats it for me. Peace out. Good luck and appreciate anything you get!