If you have 4 weeks left, why not just go to the end? 4 weeks with shitty cholesterol values is nothing, it is stuff which will kill you in decades if you have elevated values. Living healthy after will pretty much reverse any damage you started to make. You could look into your diet straight away to increase different foods which are good for HDL and take away LDL increasing foodstuffs. The lists for both are quite long so you can pretty much pick and choose. Even small changes can make a noticeable difference.
I'd look into swapping gear in future if this is a concern for you. Masteron, Superdrol and Anavar, that is 3/4 of the gear you chose, are all in the category of "harsh for lipids". Have you tried replacing Masteron with Primo? Are you using AIs (try replacing em with SERMs)? Instead of Superdrol you could use Anadrol, avoiding too much salt and carbs you can pretty much avoid the water weight from it. Winstrol is quite harsh for lipids, but is it more harsh than Anavar? If it is a cut, you could look into dropping one or two harsh substances and testing out clen(+T3)
I've been on gear non-stop for over 2 years and my bloodwork after few months of weekly 500mg Test, 400mg Tren, 750mg Deca, 750mg Boldenone, 350mg Anadrol, 175mg Dianabol and 140mg Winstrol had only slightly elevated LDL and slightly under reference range HDL (liver values were slightly elevated too). Doctor said nothing requiring actions but maybe in the future if this continues, to look into minor changes in lifestyle like less alcohol, less porkfat and pizza.
The bloodwork was done on the peak of the bulk, and I really had to eat dirty to gain any weight. As I'm not looking to drop gear in the next few months, I did minor changes in diet and gear and waiting few months to repeat bloodwork to see if I can have a good blast with normal bloodwork. Gear I'm going to run while doing the next bloodwork will be only Test, Tren and Boldenone.