How to practice the intonation?

I have found that the sound of my English speaking is weird. The mood in which I speak is as if someone owes me something. (or, I speak as if someone owes me something) Hahaha. This is due to the differences between Chinese and English. I used to speak with no intonation. I'm trying to imitate native speakers nowadays. It helps a little. However,it is still hard to get the feelings right. (or, There is still difficulty in getting the feelings right.)

~ I would suggest shadowing! This means watching TV, dramas or Youtube in English and trying to repeat what the native speakers say. Watch their movements and faces as well. I hope this was helpful!