If you are a drinker, I would say stop the alcohol before you do some real damage, Your GGT is liver specific and it is ok, i would repeat these after being completely sober for about 2 months.
I don't know why you think you have a disease. What did your doctor say? labs bounce around,just retake, if you need to lose weight or taking any meds, this could be the cause for some higher numbers
Why do you think you have liver disease?
Even if you did have liver disease no one here would be able to know that just from your lab reports which by some of which are just barley elevated.. Your GGT looks for liver inflammation, its liver specific and it's normal.
Labs can be elevated for all kinds of reasons, they tend to bounce around. Have them re checked after some time has passed to see if they return to normal..
If you are looking to keep your liver healthy and happy stick to a healthy life style..