Does anyone have any suggestions on how to get rid of acne/acne scars?

I have had acne since I was 13, not super bad but annoying enough, and have tried pretty much everything. It all works for a while then stops or I have to keep using it all the time. Recently I have been using a prescription medication but it totally makes my skin dry and flakey so I only use it as a spot treatment.

Does anyone, preferably anyone around my age, know of anything good that would wprk and I don't have to use forever?
Does anyone have any suggestions on how to get rid of acne/acne scars?
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