It is important to explain to your boyfriend that you are feeling controlled by him AND that you appreciate his concerns. If you are going to pursue an acting career you are going to have to work with men intensely for extended hours — away from him. Set the ground rules now with him about what you are willing to do to help with his insecurities and what you are not willing to do because it is too controlling.
It is important to discuss his vulnerability and insecurity as it relates to you feeling controlled. Jealousy is a natural part of human relationships and is a fertile ground for discussion. But it doesn’t mean you have to give up who you are. Talk with him to come to a mutually agreeable plan for moving forward.