Hello, Bella T. - It is always possible to be both an actor and work on films and television in other aspects of production.
The two interests that you have are very much related. There will be some steps that you will take in your own time, at your own pace. While studying film making, you will learn a great deal. Writers, directors and production people need to have a full understanding about acting, too, even if they do not act. I first recommend that you take a beginning acting course while you are taking film making. Take both an acting class that is geared to theatre and one that is geared to film and television. The acting styles differ in the various media and it will be important for you overall to know the techniques and styles.
The second suggestion is that you will maybe consider living in either New York or Los Angeles as you will gain very valuable experience, even if you do extra work at first. You will also have many more opportunities and sometimes being around well known artists can be very helpful and widen your social contacts. Contacts are essential in the business. Most of the work is in Los Angeles or New York.
After you graduate college, you will find a niche and know where you'll be starting from. It is also possible that while you are doing your film making, you may see something that you may want to audition for. You can do various work based on your schedule . You will naturally find a structure that works for you.
Overall, be consistent, dedicated and focused on what you're doing at the time and try not to stress out about it too much. Take one thing at a time at first. Contrary to what people may believe, the entertainment industry is quite demanding and most companies uphold a strong work ethic.
The exciting thing about the career you are studying for is that you never know what is ahead, what door will open for you. Stay true to yourself and you will do well.