Aicila2491, i've got the same "problem" like you, and it is purely inherited from my mum's family. And no one ever had any hearth problems. Nutrition plays only a small part in cholesterol, most of it is produced by your body.
Total cholesterol is >260 (LDL 180, HDL 60). We always cook fresh, so no convenience food products or take away food, no McD or similar, Greek olive oil is standard (although it has become very expensive), fish, nuts etc, so all what normally is recommended to reduce cholesterol values.
My AME says that an isolotad view on cholestrol values like in the past decades (coming from the US in the 50s as one of their usual hybris) is BS, the total health status has to be considered. So without the usual risk for health problems like no exercises, overweight, smoking/drinking etc their shoudn't be any problems even for a class 1 medical.
I've read about statins, but still some of the side effects shouldn't be neglected.