This is really a big problem to come off from steroids
after having used for so many years.
You have to be patient in coming out of this problem and it shall take a very long time.
Try coming out of this medicine by tapering the medicine very slowly.
For example if you are taking one tablet,then start using three fourth of it for 6 weeks.
Once your body settles on this dose you may reduce the dose to half tablet and use it for 6 weeks.
Go on tapering the dose even to one eighth of the tablet and then start using alternate days and so on.
May be this sounds absurd to you,but the fact is there is no other way to come out of it.
It may take 6 months to a year for doing so.
Best of luck.