Thank you for posting your question here, I will try to answer it as best as I can.
The steps you have taken are in the right direction, yes you need to exercise and stop drinking. But you also need to change your diet, increase carbohydrate
intake and reduce protein intake, also you can take some vitamin supplements, they are known to help.
You can also talk to your doctor about him prescribing you with some anti inflammatory drugs for your liver
And last but not least you need to make up follow up appointments, so that the level of AST & ALT
can be monitored to check whether they are decreasing or not.
I hope this answered your question.