28% total body fat isn't that bad, but yea can still improve to reduce to below 23-20%. This going to be closely related to your dietary habit.

Lack of muscle means you are not putting weight or resistance exercise as part of your habit. There are pharmacological shortcuts and some devices that can help, but the most economical is to start with Tabata.

Fatty liver means your body starts to compound the excess cholesterol for quite some time, and it deposits all in the liver. Sooner or later your liver going to start hardening and potentially can cause liver failure due to cirrhosis.

Btw I am medical Dr that specializing with weight loss via pharmacological approach and lifestyle modification, so this is all my shit.

Easy said than done. Without proper guidance and how to step, failure of continuation is extremely high.