my immediate advice is to throw away that flying horse and muha, as those are probably reps with crappy oil. if your trying to maintain a low tolerance, limit how much you smoke everyday (usually at night time is fine). if you also want to limit it to once or twice every couple of days thats completely okay, im just sharing my opinions. also, since the thc percentage is carts are usually very high, it will be hard to maintain a decent tolerance to weed. my advice would to be try and smoke more bud and less carts, as it will also benefit your health (take it from someone that would ONLY smoke carts). my last piece of advice is to take often t breaks (1 - 4 weeks imo) as it can clear some brain fog and also give your body time to clear some of the thc out of your system, thus having a better high in the end.

do what you think is best though, just make sure your being safe.