You must start statin
drugs for your high LDL
and check your SGPT again after 4 weeks.
If SGPT increases then you stop your statins and simultaneously start aerobic exercises
for at least 30 minutes a day as a lifestyle change measure.
Yes you can have fish but it should be roasted.
Red meat is not advisable.
You can have nuts like almond and walnuts in your diet.
If you are overweight
reduce your weight.
Any further query is most welcome