Talk to General Physician on Continues Instability In Cholesterol Level

I am facing high cholesterol level problem for last 2 years. My report was clear normal in September 20 as i was using tablets for cholesterol. when it became normal i stopped using tablets. After 4 months i conduct lipid profile test again and found again raise in cholesterol levels. I just want to ask you how can k maintain my cholesterol level normal permanently? I also attach my test reports.