Practice by myself
Download a Chinese English dictionary, search for the word you want to practice and use the audio function of the dictionary to hear how the word is spoken. Repeat this after listening.
The best Chinese English dictionaries
I use Hanping Pro; it’s simple and free. However, there are many other useful apps you may prefer to use. You can try them individually until you find the one you like. You can also use Pleco, Google Translate, or any another Chinese Dictionary. If you are using another dictionary that works for you, feel free to leave a comment.
Practice with others
You can use websites where you can speak Chinese with native speakers and you will get very useful feedback about the areas you need to improve. You can use Hilokal, my language exchange, speechling, Mandarin Tutor, or any suitable language exchange platform you will find through your search engine.