You have a tricky situation, with cultural expectations, nuances, and norms that may be difficult for many of us to understand. That said, there are some concrete things that you can do in the meantime.
Be selective and strategic in what you do and do not say. As mentioned by others, you do not need to convince you parents about your chosen major or profession right now, you just need to get yourself in the door to college. There is no productive conversation about journalism that is going to happen, and as other responses have discussed: you can (and likely should!) major in something other than journalism in order to become a valued, successful journalist.
You’ve been conditioned to share everything with your parents, and thus it feels harmful, wrong, or anxiety provoking not to do so. That is completely understandable and it’s going to take time for you to feel differently. Your wanting to convince them about the rightness of your desired major is part of this.
Do not talk about journalism. Decide on a major that could mean different things to different people, aka your parents, and describe a prestigious/acceptable career path that follows. It does not matter if you don’t go into that career! As others have mentioned, successful journalists typically have degrees in fields other than journalism. Take the classes, get your degree, and different options will unfold for you in time. On graduation day they can not force you into a particular job or field or graduate school. But degree in hand, you can make decisions and apply for roles that you’re not able to today.
You are also going to set up a separate email address for yourself, and a separate bank account. Do not announce that you are doing this, you just do it; your new email account and your bank account are private. If they already read or check your emails, keep your old email account open and use it on occasion for benign correspondence. (If you email them, use the old email address, the one they already know.) Your new bank account should be opened as a paperless account, and you can open it with your address at college; even without living on campus you will have a mailing address there.
Enroll in college. Start your classes. You’re going to do great.
Here is a snippet of advice from Captain Awkward around controlling parents and college:
-We’ve already covered finding more permissible reasons to be out of the house more, and I also suggest that you become pre-emptive and extremely detailed in informing your parents of your schedule. Not because they deserve it, or because knowing where you are every minute is healthy or something that parents of adult children are entitled to, but because it puts them off balance and out of the role of monitor and interrogator if you do it first. I want to be clear that this practice is not about rewarding controlling behavior, it’s about you being in undercover survival mode until you move out and about giving you low-stakes, daily practice in informing them of what you are doing instead of asking permission . In the past, you might have asked or floated a trial balloon – “I want to join a chem study group or audition for the play, what do you think? ” For now, try informing them – “Good news, I’ve joined a chem study group with some of the best people in my class!” “Good news, I got a part in the fall play! ” – and treating whatever it is as non-debatable. You could print out a grid of your schedule and post it on the refrigerator, or tell them each day “I have class until three, and then I have rehearsal until seven and my chemistry study group meets in the library until nine. I’ve packed myself some leftovers for dinner, I’ll see you before 10. Love you! ”