Next week, I will have a speaking exam. However, I realise that there is something wrong with my English pronunciation.

My teacher said I speak too smooth and small so I has tried to stress to make my voice seem heavier. Inversely, I also listened to others speaking.

Unfortunately, it seems not working. When I start speaking, I forget all the rules, all the sounds and my speech is monotonous and my voice is flat and flat.

And people begin to lose interest in my presentation.

Anyone here could you please give me some advice?