I'm sure you'll find it totally different and changes in your accent could be seen within a short amount of time.

我相信大家肯定会感觉到不同之处，并且用不了多久，你就会发现自己的发音正在逐步改变。

youdao

My brief lesson hints at the phenomenal amount of work involved in reaching a point where that accent convinces on a giant screen, in surround sound and over a two-hour running time.

BBC: How not to do an American accent