How to remove mistakes while speaking ?

How to remove mistakes while speaking ?.......Here i am talking about very comman mistake i have seen this several times . ..... .That's mistake "NA".....Just like these EX .. .1) I called you na.....2) I said you na...... This's not english word we created to this themself so don't use it ......Now i am going to tell you how can you Distach while speaking......whenever talk with somebody record that conversation , then sooner listen that Then you will be able to find out some good points and bad points. ....Thanks To Reading This🌿🌼🌿🌼