It is possible that you were wrongfully diagnosed, HOWEVER keep in mind that cirrhosis does not give any symptoms until the disease is very advanced.
You should get blood test to check you liver function (liver enzymes can be elevated, your platelets can go down, and your coagulation studies can be altered), and there are better imaging studies to evaluate the liver besides the ultrasound, including CT scan or MRI.
Also a liver biopsy can be done as the definitive test to diagnose it, but it is oftentimes not necessary.
Until you are not sure about the diagnosis, you should avoid alcohol.

Hello, websterjanis,
You tell us that you were diagnosed 3 years ago by blood tests and
ultrasound. I assume your liver tests were very abnormal at that time
and the liver ultrasound showed abnormal findings. Just by these alone
we cannot make a diagnosis of Cirrhosis. That needs a biopsy confirmation.
First let us look at the causes of cirrhosis. In the western world alcohol is
number one. Then you have Hepatitis B & C of a chronic variety.
Biliary tract disease, such as Primary Biliaiary Cirrhosis, Auto-Immune
liver diseases, drug induced etc.
If at this time your sonogram was normal and all your liver tests turned
out to be normal it is highly unlikely that you had cirrhosis.
Even heavy alcoholics, after they stop drinking, it takes many years to
have the liver functions back to normal.
I still advice you to curtail drinking if you had liver problems already.
That can make it worse and your liver disease can then progress
to cirrhosis. Make sure your diet is good, high protein diet and you
can supplement that with a Super B-Complex vitamin with C daily.
Take 800 i.u. of Vit-E also daily. That will help.
Wish you well.