That is good ...............I mean you know your problem then try to resolves it
read HR related post try to ans it , speak in English with your colleague & dont hesitate to speak slowly slowly you will learn how to answer,
Don't loose your confidence
You have been a member of Cite HR for a long time but with less active participation.
Please type "how to speak English fluently" inside the 'search' box that you find in the title bar above.
Then press 'enter' key
You will find a lot of posts and a plethora of innovative ideas as well.
Go through them.
The only solution is to repeatedly practice and by specifcally devoting more time.
Confidence do not come overnight as the fear that has prevented you from being social and trying and failing is built over a long period of time. But start now. Learn at least one word of English everyday. Speak in front of mirror alone at home and practice. Similarly failing is not end of life. Fail and fail but again try and try. You will automatically improve and will stop fearing failure. This is the beginning. Grow more with this foundation. Then learning whether HR or other subjects become easy.