Recommended frequency of acne treatments

Lately, I've been getting both inflammatory and whitehead acne, along with occasional breakouts, so I'm considering getting an acne treatment. Looking at reviews on online communities and from people around me, it seems the results vary from person to person, so it's hard to decide what the best approach would be. I consulted a clinic before, and the recommended number of sessions was quite a bit higher than I expected... I'm not sure if you really need that many sessions to see results, or if it's partly for the clinic's revenue.

Since acne treatments are only affordable if purchased as a package, I feel like it's a bit awkward to even try it out once or twice.

It is quite confusing because the hospital says that you need to undergo at least the recommended number of acne treatments to see results.

I would be so sad if I spent a lot of money on this and it didn't work, so I would appreciate it if those who have actually received it could share their reviews. Since it’s quite a significant amount of money, I’m being very cautious.