It's possible it will go away, but unlikely as you have had it for over a year now. If it was going to go away, it probably would have quickly or over a span of a few months after it finished growing. Usually males will have some breast gland growth during puberty and then it will go away without them even noticing it.
It's possible you could feel it shrinking, but you've had it for over a year.. it more than likely grew then just stopped. Don't freeze or take ANY drugs that people recommend online.
I would highly recommend you wait half a year(just to make sure it doesn't go away on its own), and if it doesn't change at all after that time, then think about surgery and discuss it with your parents.