What kind of accent does Pennsylvania have?

What would help me get more of a british accent once I get there? I reeaaaly want one!!

So this is the accent of a certain region in my fictional setting. It's loosely based on a real accent in real life, but almost everybody who reads it thinks it's something different. The most recent (and absurd) guess was a New York accent, haha. Anyways...

So I heard that sometimes if you move to a different country at a young age, you can lose your accent and get the accent of the country you live in. So if an 18 year old person lived in a different country around the world for lets say 6 months each...

I say 'phone' as 'fown', like, the o is more distinct. I say 'fire' as 'fye-er'. I say 'dawn' the same way as 'don' is pronounced, and 'caught' the same way as 'cot is pronounced. My mom's side is from New England (mainly New Jersey and Pennsylvania...

I'm a sophmore in high school, and i think it might be fun to go a whole day using some kind of accent or speech thing all day. For example, an australian accent, or canadian accent, or speak in the third person? If any of them would be fun, what would...

If you could, what kind of accent would you have if you could? I mean like an English accent, New York accent, etc.?

I have a southern accent which gets thicker as I age. I usually tone it down in public because people sometimes make fun of me because it's so thick. But, at home I don't really care because everyone except my mom has one. She has a Louisiana accent...