Eating Cholesterol has the opposite effect to what you think, it actually lowers it. Our bodies produce about 80% of what it needs, so eat more and it produces less. Problems usually arise due to balance of carbs and fats, if the ratio is wrong, as in too many carbs, then the cholesterol level rises.
High triglycerides could simply mean you are fat burning, and they are passing through your bloodstream to exit the body. Don't forget it's the companies selling the Statins, that fund the research telling doctors that the levels keep having to drop.
My total is 6, ironically the same as it was 40 odd years ago when i was very fit and healthy.
The Cholesterol cycle in our bodies, appears to be about 3 days, so 3 days after the test they will be completely different anyway.