How can I develop an American accent?

What's your native language? My advice changes depending on the kind of accent. If you have a tonal native language, one thing that I don't hear people talking about is that you're probably adding tones to the words you're speaking.

Just watch all the videos and apply them while watching on YouTube: “Sounds American” channel. Do the same steps more times( watch more than once)

Honestly even as a native speaker I don’t understand how people from other countries develop their accent. It’s almost like overtime it just happens naturally

Accents are not films to be developed.

First thing that comes to mind is shadowing (repeating what you hear while trying to copy the exact pronunciation) Second thing that comes to mind is YouTube videos ("how to sound like American" "better pronunciation" etc.)

stop defaulting to Asian vowels and consonants. Learn the right sounds in English.

Listen to sentences in the accent and try to repeat in the same way. When listening, try to identify exactly what makes it sound American (for example certain sounds are dropped or elongated) also identify which American accent you want to sound like, as there are multiple.

That’s already good what you’re doing and with that you could also repeat after what the person you’re listening to and try to say it accurately. Keep repeating that process and before you know it, you’ll start speaking amercian english!

The "American" accent is a fallacy. There are over 20 major American accents, all being pretty varied. The one you hear on tv is not a good representation of how people talk here. That one is probably the easiest to learn though. The only way to pick up an accent is physically working on pronunciation, repeatedly, and likely for years. There's no real way around that, but it can be done. Also helps to interact with people verbally from the area in question. Exposure to it over long periods really helps. Even if that exposure is just TV, just attempt to mimic certain words you struggle with and over time you will figure it out.

You have to develop an ear for the sounds and mimic them more exactly. It is going to feel weird at first and feel like you're just copying someone but, literally just pick someone's voice you like and pretend you're them. Overtime it will be less exaggerated and start feeling like your own voice.

Find somebody (on youtube or whatever) that you want to sound like. Listen to them say a sentence. Record yourself trying to sound exactly like them. Compare the recordings at 0.5x speed. Find each and every tiny little difference between your pronunciation and theirs. Fix it. Repeat. Also watch [https://www.youtube.com/@rachelsenglish](https://www.youtube.com/@rachelsenglish) and [https://www.youtube.com/@DrGeoffLindsey](https://www.youtube.com/@DrGeoffLindsey) and that'll help you learn what differences you should be listening for.

I would guess you need to work on weak forms. Search for examples on Youtube for "English strong and weak forms". Start here with Dr. Geoff: [https://www.youtube.com/watch?v=EaXYas58\_kc](https://www.youtube.com/watch?v=EaXYas58_kc)

I’d suggest deciding which American accent. Midwest? Southern? West Coast? Narrow it down and then find creators who speak in that accent. But there is nothing wrong with an Asian accent.

I saw a video once (of a teacher actually teaching native Asian speakers to have an “American” accent). He recommended purposefully over-emphasizing words to force your mouth to form “american” sounds, and over time your brain learns the different positions of the tongue 🤷🏻‍♀️ not sure if that helps. American’s tend to have “harsh” accents with hard consonants, and depending on the region we have lazy vowels

If you don't live in the US you probably can't. Even living here, many people can't change their accent without a speech coach.