I'm male and 17 years old.

I've been on 40 mg a day for the past 6 months and finish the course next week.

Will my skin continue to get better, or is this the best it can be? When my other friends finished their course they had completely clear skin, but I still have lots of red marks (almost looks like spots under skin) although my face is completely smooth. (See photo)

If my skin won't improve further naturally, is there anything I can do to improve it?