No one here is a doctor or medical professional and even a doctor without seeing your records would not be able to authoritatively answer your question.
That being said your ultrasound result “minimally heterogeneous texture” is not a normal result as the liver should be smooth and your result indicates some coarsening of the livers surface.
Yes you should quit drinking vs cutting back especially if you are an alcoholic as most people who are alcoholics have little success in simple reducing alcohol consumption. Eating healthy and getting exercise as tolerated are good healthy choices.
Alcohol and other causes of liver damage take a long time to rise to the level of major liver damage ie cirrhosis.
I was diagnosed with liver cirrhosis in Jan 2008 due to having had hepatitis c for probably 30 years by that time. I was curedof hep c 3 years ago which has stopped the progression of liver damage.
It is said that liver damage can improve with time for many patients even those like me with cirrhosis have about a 50/50 chance of reduction in liver scarring.
Signifigantly reduce drinking if you can or if you can’t you must stop drinking completely. Eat healthy get some exercise.
You will be fine if you take these measures to protect and heal your liver.
Just to add even with cirrhosis I don’t have any URQ pain that is normally not a symptom. Nor is an ammonia smell.
High ammonia blood levels are a cause of hepatic encephalopathy one symptom would be breath that has a sweet, fecal smell to it.
Other symptoms of HE:
Early symptoms include forgetfulness, confusion, and breath with a sweet or musty odor. Advanced symptoms include shaking of the hands or arms, disorientation, and slurred speech.
HE is a symptom of liver failure you are no where near that level of damage