Is acne treatment generally effective for adult acne as well?

My skin was relatively clear when I was a student, but strangely enough, I have been very worried about acne since becoming an adult.

It keeps popping up especially around my chin; just when it seems to go away, it appears again, leaving marks, so my skin feels like it's getting messier and messier.

So, I'm thinking of getting proper acne treatment this time, and I'm wondering if the satisfaction rate is generally high for adult acne as well.

When I search, it seems there are slightly fewer reviews about adult acne than teenage acne, so I’d like to hear about actual experiences.

Has anyone else received acne treatment after becoming an adult like me? I am also curious to know if there were any noticeable changes after a few sessions.

I would also like to know if you changed your lifestyle significantly while receiving treatment, and if diet and sleep have a major impact.

I'm worried that I might be starting too late, but I think it's right to manage it before it gets worse. Please leave a comment if you have experience with acne treatment!