Do you know how many No's I have got? About a million trillion! Seriously modeling is an industry of No's. So, just because a modeling agency says no don't let that define whether you should pursue your goals. Maybe you should change your photos, update your portfolio, make a new compcard, submit again! Maybe you could try a different approach. Maybe you could try to take control of your goals and even submit your photos to some magazines, other agents, or photographers, don't let the spirit you have for something you want to do die just because someone says no!
Take the no and use it to create more ambition, don't wait, don't fret, and do your homework, and research, and work, because being who you want to be is always worth the work.