I would like to inquire about lip fillers.

Hello. I have a question regarding lip fillers. Since so many people around me are getting them lately, I find myself becoming interested as well. When I see reviews saying that just adding a little volume to the lips can dramatically change one's appearance, I feel like booking an appointment right away... haha. However, my biggest concerns are, of course, the pain and the duration of the effect. Since the lips are such a sensitive area, I'm worried it might be extremely painful when I get injected, so I'm even looking up videos about lip filler pain. It's also a bit disappointing that the average duration is usually about 6 months to a year, meaning the lips return to their original state once that period wears off. Above all, I am very worried about side effects, such as the filler clumping or the shape becoming distorted. I'm curious to know if those who have already tried it are satisfied after getting lip fillers. Please share all your real reviews, including details about pain and side effects, as well as lots of helpful tips! Thank you haha.