Parents can have all kinds of difficulties letti g their children go. The crucial thing, though, is that you do what’s best for you. Soon enough she’ll either get used to it and be ok with it, or will have reason to get support. If you don’t take the offer and you want to go you might not ever be able to rebuild your relationship, even though it might make her happy, because you might never be able to forgive her for it. In the end, you’ll be an adult and you can decide. Apply for all the funding you might need, and so on, and then you’ll have it all set up so that you can go. If you have another adult you trust who might be able to talk to her, maybe do that too, and at least make other people you trust aware of the situation so they can help should you ever need help with anything. I’m sorry you’re going through this, but congrats on your offer, you’ve done so well!