Youtube is helpful to improve it. I dont know about ur level of Cantonese, assuming that u have already in a intermediate level cuz u just mentioned u have been working with locals in HK. I learn cantonese through songs and cantonese movies. Keywords: cantonese movies with english subtitle on youtube

Hey, Peterson I recommend you watch more English programmes on youtube, in scottish accent in particular, because scottish "accent" is really unique and they also apply certain scottish slangs.

”我的事轮不到你来管“ literally: my business turn to you to meddle in. backtranslation: i will not allow you to get involved the business I'm taking charged in proposed translation: to mind your own business ”再怎么样也轮不到你bb“ I don't know what the bb stand for?? Actually, '轮不到' is not a polite but a bit offense. normally, we omitted two existing meanings, one is 'whatever', the other is 'the style of complaint'. people apply it into sentence for complaining 'you have no right to meddle in my business no matter how you are good at it or perform better than me OR who do you think you are to meddle in my business, I don't need your help even if I get in a trouble (a bit jealousy and childlike) 轮不到+ someone= (who do you think you are), therefore, apply to your sentence provided above, ”我的事轮不到你来管“ hope it helps

Dear ____, I really miss you! Do you think you'll be able to come to America soon? I'm sorry I still haven't sent you a letter yet. Is your family going to do anything to celebrate the Lantern Festival this year? We're going to go see a performance. I can't wait! 親愛的----- 我好想你！你能快來美國嗎？我還沒寄信給你真的很抱歉。你家人有打算怎麼過今年玩宵節了嗎？我打算去看場表演。很期待。(traditional) 亲爱的----- 我好想你！你能快来美国吗？我还没寄信给你真的很抱歉。你家人有打算怎么过今年玩宵节了吗？我打算去看场表演。很期待。(simplified) sorry for not knowing if you are look for a simplified or traditional characters.