Hi R.,
I actually have a lot of experience with acne. I can tell you I suffered for YEARS with severe disfiguring cystic acne. If I ever had a recurrence (which hasn't happened yet), I would not hesitate to resort to accutane for help.
I was 13 when my doctor resorted to accutane. My acne was so bad that nothing else worked, or it made it exponentially worse. I actually took the stuff for FOUR YEARS, which I don't even think is legal any more. I'm 30 now, so I started taking it about 17 years ago, and at that time, there weren't as many hoops to jump through. This is a very dangerous drug with some potentially very dangerous side effects, so be as understanding as possible with the process. Those protocol are there to keep you safe. But do not be deterred, this drug does work miracles.
The side effects were nothing short of miserable for me. It dries out your mucous membranes something fierce. I had to always have eye drops, saline spray for my nose, vaseline, lotion, etc. on me, as well as ointment for my lips, because all of those things would dry out terribly. You can't stay in the sunlight, your skin is very sensitive to it. It also causes depression, which I unfortunately did experience, but I think doctors are much more careful about monitoring that side effect nowadays because people don't always notice it sneaking up on them.
In the end, I have never regretted it. I am so grateful that my parents made the choice to give me the drug at such a young age. They were worried to do it, but I'm so glad that they did. I still have a lot of scarring, but nothing more than the occasional pimple. It changed my life.
Good luck to you!