Self conscious about acne. Going back to dermatologist. HELP?

Hey. I went to my dermatologist last summer, and he prescribed me three medications (Retin-A, Clindamycin Phosphate, and this pill, I forgot what it is called.) Anyway, my skin has gotten worse, especially since it's been a year since I've gone. The only medication I'm still on is the Retin-A. It has gone to point where it affects my self confidence, talking to the ladies, and etc. ;] Anyway, I made an appointment, but it's in mid-June. I made it with the same dermatologist, and I'm going to walk in with the attitude of clearing my face, because it really hurts me inside. That's where I need your help. What can I say to my dermatologist to make him understand me and give me a treatment that will actually work. I have really oily skin. Please help. Share experiences. Anything. Thanks.