I really know nothing about cholesterol; though I think I read somewhere that your cholesterol is 90% controlled by genetics and 10% by what you eat, etc. This might be entirely bulldust (as they used to say on Neighbours) but I don’t really know. I expect – as always – there’s someone else around who will know a zillion times more about it than me.
In the meantime – I hope you get it sorted. Is going on statins a problem? Do they have any long or short term effects?