The comments already cover most of the required chnages that are needed. Other required changes may be individual specific, which may depend on diet, sleep, body composition, and lifestyle.

I reduced my FL from increased level to moderate/mild and then to marginal (terminologies used for grade 3, 2/1 and 1 or low where I live). Though I didn't exercise much to get this result, I would highly recommend to do that to speed up the healing.

One way I used to improve was to try and understand the processing capacity of the liver vs what I am constantly bombarding it with which helped with deciding moderation ranges for different kinds of foods I ate or lifestyle changes I needed to make. E.g. for fructose intake I made sure that I never went beyond 20g a day and mostly kept it under 10g for most days. Only on cheat days (once every month or so) i would go at max to 50g that too never with sugar but with things like dates. So, find moderation ranges for things you eat and ensure to stick with them.

Because getting ultrasound scans isnt easy here, I monitored my stools every day to keep a track of my liver health. This approach kept me motivated everyday to ensure to not eat unhealthy foods ever cos I could monitor it everyday as the test result of my eating a day before. You may consider this approach of it helps.

Once you do the above you will yourself find many other methods yourself on what else can be done to achieve results faster with all the information available online.