Why cant I get an agent!?

Nothing much really apart from keep trying! Add to your resume and send it off again and again. Loads of people want to be actors/singers... You actually need talent to get anywhere, it isn't a free ticket to fame and fortune. The popular agencies are inundated with young peoples resumes, so maybe start at the bottom and work your way up. Send resumes off to lesser known agents as well as popular ones. The more you send off, the more chances you get. You have to go out and find opportunities yourself as well, look on the Internet for auditions, apply to audition and do your best. If you are accepted, the chances are more well known actors/actresses and agents are there also. The best you can do is send loads of resumes out and get your name out there. Just try your best and persevere, itl pay off eventually :)