You have to give us more information, for example if you have diabetes or any form of heart disease or predisposition to heart disease you will need cholesterol medications. Diet is an effective way to lower your bad cholesterol or LDL but it only lowers it by about 20% or so. It is not only the number of LDL particles that causes heart attacks and strokes it is also the size of the individual particle that matters. The smaller the particle the more likely it is to clump into a clot. Medications such as statins change the size of the ldl particle making it less likely to clump into a clot. In addition to lowering cholesterol, the statins have a protective role on the blood vessels and prevent clot formation. i would avoid red yeast because it has unknown quantities of lovastatin a cholesterol medication.
There is zero evidence that statins have any protective effect for those who have never had a heart attack, but can be beneficial to those who have had one. Moreover, statins have an abundance of side effects including muscle weakness--hello, what is the heart? The statin industry has one the public war.