Pronunciation

/ð/ sound
This semestr I would like to focus on /ð/ sound. When th pronounced as /ð/ is in the middle or at the end of the word there is no problem. However, when at the beginning, I do not pronouce it as /ð/ but as /d/. Trouble is that such words are the most common in English, for example: the, they, there, that ...
One artefact deals with this issue.
 
Reflection  June 10, 2017
I have to confess that my /ð/ is still sometimes missing when I speak fast as it was heard during my oral part of PL exam. On the other hand, I realize that setting this goal helped me a lot. I listen to myself and when I pronounce th icorrectly and try to correct myself. Above that, more words I pronounce well after practicing. My tongue goes between my teeth more easily.