So when I started tirz I did labs at the same time. I had LDL of 117, Triglycerides of 219. I immediately started a complete diet change, clean eating, low-ish carb with healthy macros, exercise, and tirz, but I also added what I think was a cheat-code.... I used this stuff "Cholestoff Complete" and took 3 pills twice a day after meals as per the instructions for 1 month. I drew labs again (only 1 month later) and my LDL was 79, Triglycerides 111. Unfortunately my HDL also dropped 42 to 35 in that time too. I haven't taken those pills since then, this post actually reminds me to order labs again, it's been about 3 months since that last check.
Anyways, if you want to take drastic measures, you may want to check out that cholestoff complete stuff. Specifically the "complete" version as it apparenly not only lowers cholesterol but also inhibits the creation of excess cholesterol in the liver. Active ingredients are Plant Stenols and Pantethine. The healthy eating and meds of course play their role but with only 1 month for that high impact I have to give some credit to the supplement.
As far as raising HDL though.... that's where I really need to focus. I've been taking omegas for years, already exercise, and already eating clean so I'm not sure what else I can do there so I'm hoping for some tips here.