My acne got soo much better after becoming vegetarian, I would look into that diet.
I am not sure how much water you are drinking per day, but water helps with acne, I read reports on that. Drink: before, during, and after.
How I handle stress: with every bad thought, I replace it with a good thought. Write down on a sheet of paper or say out loud the things you are grateful for and I find that helps me with stress.
Breathing exercises are good too
I would try these things before taking another drug
Good luck dear