Can you tell me about the difference between an American and a British accent?

Question

COASTBC · Answer

Accent is the obvious part. There's also differences in word choices and even the meaning of words in some cases.
slang in particular tends to be unique to one or the other. As a rule, the British watch a lot more American media than the other way around. So they tend to be better versed in US English than Americans are with UK English.

COASTBC · Answer

@5d21ee0c Can you send me a recording of your speaking voice. If you do already sound British, then I'd recommend learning British English. Many English learners never do develop a native accent of any kind. If it's true that you already sound British, then you have an advantage most people don't have.

COASTBC · Answer

@5d21ee0c Say whatever you know how to say well.

COASTBC · Answer

@5d21ee0c Sorry, can you make it a sentence. It's virtually impossible to judge an accent on just one word.

COASTBC · Answer

@5d21ee0c Ok. 
"I'd  prefer to learn American instead of British English."

COASTBC · Answer

@5d21ee0c The only incorrect thing I heard was "English"  
I don't hear much that sounds British. Your "er" in prefer and the previous "whatever" isn't a rhotic R, but there are American accents that don't use them. Your T in "Whatever" is a proper T instead of the American flap T. A flap T sounds similar to a D sound. If that's what other people were talking about, then I'd recommend staying with American English. Those are not difficult corrections to make. The tone and timbre of your voice is neither US or UK. It's dominated by your native accent. You do speak clearly and you're easy to understand despite your native accent. 
Find the word "water" in the dictionary and compare the US and UK phonetic spellings. The T in the US phonetic spelling  will have a v shaped symbol below it. That's the symbol for the flap T. 
Not all T's in US English are a flap T. They never are if the T is the first letter in the word. Generally,  one or two T's between two vowels is a flap T. words like better, water, butter etc.

COASTBC · Answer

@5d21ee0c Uk water. US water.
You should hear a difference in the T sounds. My "er" on the end is different than the one you used in "whatever" I used a rhotic R. 
In my opinion, you don't currently have an English accent of any kind. Your native accent is still dominant. So you're free to choose what version of English you want to learn.

COASTBC · Answer

@5d21ee0c Ok, what can I help you with.

COASTBC · Answer

@5d21ee0c So far, I haven't seen anything in the text you've written here that I felt a need to correct. I encounter less than perfect grammar often. It's rare that I don't understand at all. English grammar is not logical. Your ability to understand it is not the problem, the grammar itself is the problem. Learning it often feels like trying to knock down a stone wall with your head. It feels like you accomplished nothing except getting a headache. Eventually you will start to understand it. It just takes a ridiculous amount of patience and effort.

COASTBC · Answer

I've had a problem understanding English grammar for a long time. I have difficulty understanding it or understand one thing, but I forget it after a while. Also, when talking to someone, there are words that I feel are new and I do not know them, so I am ashamed to ask about their meaning.

I made some minor corrections to the above. They weren't necessary to understand what you meant to say and that is my first point. You don't need to be perfect, you need to be understood. Perfect comes with constant exposure to native speakers. My second point, shame doesn't help you at all, nor is it justified. You are learning the most difficult language on earth. Of course you don't understand everything and that's ok. Asking questions is how you improve. Be bold, ask them to explain something if you don't understand. The worst thing they can do is say no. 
I'm a native speaker, but that doesn't mean I'm an expert. If you started asking technical questions, like tenses, I wouldn't know how to answer you.

COASTBC · Answer

@5d21ee0c How difficult a language is very much depends on how dissimilar it is to your native language. Perhaps it's not as difficult for Arabic speakers. In general however English and Mandrin are considered the most difficult.

Can you tell me about the difference between an American and a British accent? See a translation

@5d21ee0c Say whatever you know how to say well.

@5d21ee0c Sorry, can you make it a sentence. It's virtually impossible to judge an accent on just one word.

@5d21ee0c Ok. "I'd prefer to learn American instead of British English."

@5d21ee0c Ok, what can I help you with.

@5d21ee0c How difficult a language is very much depends on how dissimilar it is to your native language. Perhaps it's not as difficult for Arabic speakers. In general however English and Mandrin are considered the most difficult.

Can you tell me about the difference between an American and a British accent?

@5d21ee0c Ok.
"I'd prefer to learn American instead of British English."