Reluctant but hopeful - is it true results might take 12 months?

I had the procedure done six months ago. The doctor is really good and did many passes. I was there for almost an hour and a half. Super professionnal but I don't see any results. Im reluctant to have it done again. It cost me money I'm not willing to pay if I didn't see results in the first place. You answered questions stating that it might take 12months..is that true?1