Every so often, we get an email from a former intern, "Cindy, Angela, I just graduated from college and am moving to LA next month. I'm thinking I want to apply for an internship when I get out there, can you help me find one?" Well, yeah, we can help you get one if that's what you really want, but you were a rockstar intern, so why do you want another internship?
If you've done at least one solid entertainment industry internship, you should be able to get an assistant position. Leverage the contacts you made while you were an intern, and see if someone can help refer you somewhere. Don't put your career on pause just because you don't have the confidence that you're ready to be an assistant or that you won't find a job. Have a little faith in yourself, and leave those internship opportunities open for the people who really need them.