As strange as it may seem, I hate my accent and want to speak like an American because I think it sounds cooler and more like how I want to sound.
I’ve more or less perfected my version of an American accent on my own, I think.
But whenever I’m with other people who know me, I revert back to my old accent instinctively because that’s how they know me to sound like. I’m unsure about how I can subtly transition without them noticing a sudden change, such as through gradual exposure to my accent changing more each time they hear it. That way I could argue that I don’t know how it happened and it was a slow progression if they eventually realise it’s different, rather than something forced that I started doing one day.
The biggest thing I think is changing the pronunciation of certain words with “a”, such as going from “fahst” to “faast” for the word ‘fast’, or “mahsk” to “maask” for ‘mask’. Because it’s really one or the other, there’s no in-between. I feel like for most other sounds, a gradual transition into more American sounds can be possible, but that one’s like, how can I make the plunge and will people notice it straight away and think it’s weird?
Actors usually pay for professional dialect coaching. Before the practice became common place it was amusing to watch British actors play Americans using terrible accents. I know it applies the other way around, but I’d have a harder time noticing it.
There are still people who have terrible American accents in media. Lucifer’s twin, for example, was so ridiculously bad. The only person without an American accent who I’ve ever seen pull one off in media was Hugh Laurie in later seasons of House. I still find most attempts amusing, even with coaching.
You would notice if you watched Dick Van Dyke in Mary Poppins