Urine therapy? No comment on that.
So accutane didn't work for you? Did you do a high enough dose? My guess is that you didn't do a high enough dose and for a long enough period of time. If your acne is resistant, like mine was in the beginning, you'd most likely need a much higher dose. At my peak I was doing 80mg / day which is quite high considering I have a smaller build. It only started to work after I doubled the dosage from 40mg/day to 80mg/day and I was on it for a solid 5 months. My cystic acne was effectively cured after one course of high dose Accutane. Some people need a second course, which is often due to the first course not being aggressive enough. Only after you resolve the acne will you be able to truly do anything about the scars.
Luckily, I do not see any major scarring, at least in the pictures you provided. You are in the best position now to prevent more cystic acne that will leave worse scarring. From my experience, if your acne is scarring, then you need to hit it hard and be very aggressive. Find a physician who takes cystic acne seriously, not just some lazy hack who just wants to write a prescription for retin-a and send you on your way.
Once the acne is under control you may consider things like subcision / suction / filler for rolling scars, TCA Cross for ice picks, dermastamping, and laser resurfacing. All of those things entail some risk, with laser and excisions being the most risky especially since you have Asian skin. Anything that causes controlled trauma to the skin will result in some sort of hyperpigmentation because you have ethnic skin. That is something you must accept if you pursue scar treatments. Plus you must have realistic expectations and realize that you will not have perfect, porcelain smooth skin but only aim for improvement (although dramatic improvement is possible).