A tutor could help you out with this problem. You can have a nice conversation with someone in English without the work environment pressure, which is very important at this stage. This is a normal thing that happens to a lot of people when they don’t have anyone to practice with. You just need to gain more confidence because your mind is in “defence mode” right now, meaning you are afraid to make a mistake, (since you had some bad experiences in the past) so the fear is blocking you. In an environment where mistakes are welcome you will probably feel different and start speaking in a matter of weeks or even days! 

Well, there you have it. You won't get any better if you don't practice. Remember, practice makes perfect. If you can't find a partner - consider working with a tutor. They charge less than professional teachers. Also, it would be good if someone guided you and corrected you if you make some mistakes. 

You should start with mee

hi I m interested to chat or call it will improve both person English

I"m in the same bro.
I think we have to get used to our ear to listen to English all the tame and speak with someone all the time until one gets used to doing that.

If you want bro we can practice by what'sApp and by calls