Elevated liver function

So I’ve got some results back with an elevated liver function. I use to drink regularly but I’ve cut it back to weekends only Friday and Saturday. Has anyone ever had this before and were able to reduce it. Should I be worried I’ve heard the liver can repair itself but I’m over 30 and I drank pretty much every weekend since I was 18. I think other wise my diet quite good I don’t exercise at all over the last number of years either can that affect it. Any previous experience or advise on what to do to Reduce it would be great. Cheers.