How many nights of each?

I have retinol, gentle exfoliation, and barrier repair nighttime routines, but haven’t been able to figure out how often to do each. My goals are to keep my skin clear and alleviate the clogged pores I have. I’m supposed to use 15% azelaic acid nightly for my rosacea, too, which my skin tolerates well in all routines (and seems to help my acne too). Considering all this, how many nights a week do you think I should do each routine?