I have been recently diagnosed with pre-diabetes. Is it a serious matter? How can I get rid of it?

This is a question for your own medical practitioner.

Who diagnosed you and why didn't you discuss it with them?

Any diagnosis of diabetes cannot be reversed; it can be managed with the proper diet whereby medication will never have to be taken. Please discuss this with your medical practitioner. Get the facts from the right person, rather then coming here and asking.