in all likelihood, your current height is the one you will have even though there have been anecdotal reports of men still adding some height until the age of 25.
What you can do, however, is making sure that you move with excellent posture and avoid giving the appearance of being shorter by slouching, letting your head hang down or other habits. Particularly watch yourself when you use electronic devices. Looking down on those for hours on end can create poor posture.
And while I understand that you may be self-conscious about your height, remember that people will value you for who you are as a person. If there is anybody who judges you by the height of your body, that person is not worth knowing.
I wish you well.