Ok so in general, you can use clen while on cycle but look at your goals. It sounds like you are trying to grow with a bulking cycle. In which case, there’s no place for clen. Clen is basically a thermogenic, meaning that it helps you burn more calories than usual. So it isn't going to “burn fat” specifically. Its going to reduce the calorie surplus you’ve created to grow. So I would save it until you plan to cut. My thought would be to get through this cycle. Then take your time off, get labs to make sure you’re healthy before getting on the next cycle. At that time if you wanted to cut, you could start using the clen.