I am wondering if you have been prescribed cholesterol lowering medications. The combination of statins and alcohol can cause problems with your liver. Beer has a lot of calories and no nutritional value and I believe it is notorious for raising triglycerides. It is difficult to make all those changes at once. It's great that you've quit smoking which probably will help you more than any of the other lifestyle changes. Others might not agree, but for now just take small steps towards a healthier lifestyle. You just need to keep in mind that you have a progressive disease. Have you added some exercise into your daily routine?
I would not skip taking the aspirin, but it would be best to talk to your doctor. I'm sure they've had others ask the same question.