Methods of treating hyperlipidemia

I have been living with hyperlipidemia for a long time. I have been taking medication at the hospital for over 10 years. If I stop taking the medication, I experience a dull ache at the back of my head and my condition worsens. I don't weigh much, don't eat much meat, and eat small portions, so I don't have other health problems, but I heard that hyperlipidemia can also be inherited genetically. I am concerned about having to take medication every day in the future, so I told my friend, and my friend said that there are many cases where hyperlipidemia was treated by eating olive oil. Has anyone had similar experiences or heard related stories?