How long does an acne scar treatment take?

Since my school days, I haven't managed my acne properly and habitually squeezed it, leaving me with quite a few deep, pitted scars on my face. ㅠㅠ.. I'm thinking about starting to take care of it now, but since I've hardly ever been to a dermatologist, I feel scared and overwhelmed just thinking about actually going. 😭😭

I’ve heard a lot that acne scar treatment should be approached as a long-term process rather than a quick fix, so I’d like to ask for some realistic advice from those who have actually gone through it before I start... My biggest concern is the cost. I’m wondering what budget I should generally set aside to see satisfactory results! Also, how often should I schedule treatments to ensure a continuous flow and see proper effects?

I'm really determined to get started this time because I'm worried that if I start acne scar treatment and then give up halfway, I'll just be wasting money!! I've heard that it's much more advantageous to get it done when you're younger and your regenerative abilities are at their best, so I'm feeling a bit anxious. If anyone who has actually received acne scar treatment has any procedures they would recommend or any tips regarding the pros and cons, even the smallest ones, it would be a huge help. 🥹🙏