How should I treat my acne to be effective? I'm really worried, so I'm asking for your advice.

I'm really stressed out because I keep getting acne lately.

It’s not just a matter of one or two appearing and disappearing.
It keeps popping up around my cheeks and chin.

At first, I thought it would just get better with time, but...
It's lasting longer than I expected, so I'm really worried about it.

Especially since marks tend to remain even after the acne subsides.
I'm more worried about the traces than the new ones.

I also looked up various ways to do it at home.

I also tried changing my face washing method.
I also tried switching to cosmetics that are less irritating.

But it seemed to be getting better for a moment, then...
It would come back up after a few days.

So now I'm considering getting proper acne treatment.

I looked it up online and found that there are really a wide variety of acne treatments.

Because the treatment method varies depending on the skin condition
I'm also worried about blindly accepting just anything.

My skin is on the sensitive side, so
I am also worried that there might be severe irritation or redness after treatment.

Has anyone actually received acne treatment?

I'm also curious how many times you needed to take it to see visible effects.

Whether satisfaction was high after just one or two times
Or I would also like to know how consistently I need to receive it.

And whether the advantage of acne treatment is simply reducing acne
I'm also curious if it helps with redness or improving skin texture.

I am especially hoping for a reduction in the recurring acne breakouts.

If I start treatment, should I also change my lifestyle habits and cosmetics?

Is there a method you were particularly satisfied with while receiving acne treatment?
Please share your experience regarding the treatment.