Keep trying the diet / exercise solution as much as possible. I've had great success keeping statins out of my life for 20 years, since twice (once in early 30's and once at 50) I've had doctors tell me to go that route. I got religion, cut out red meat (beef totally, SMALL amounts of pork VERY rarely), stayed away from fat, processed sugars, simple carbs along with my riding.
When I was early 30's, also need to lose weight (235 lbs.), dropped to 150, then crept back when fatherhood interrupted my food / exercise regimen. The physical at 50 put me back on course. Cholesterol was above 200, and triglycerides at 50 above 300. Now cholesterol is 160, triglycerides in the 80's, and LDL / HDL ratios actually reverse, so all is good. It CAN work with diligence and determination.