I'm not ambitious when it comes to my acting career. I'm not...

I'm not ambitious when it comes to my acting career. I'm not breaking down my agency's doors or sending out headshots. Even when I'm offered work, I always want small parts. When it comes to things that other people have written, I just don't know what I'm doing. I'm terrible at memorizing a script and reading lines. I get confused and I don't understand and it just looks fake to me. It's more difficult for me to be creative that way.