Filler

I'm worried because the nasolabial folds are getting deeper. So, what are some ways to improve nasolabial folds? I also considered fillers, but would they be effective? Some people say it's okay, while others say it's not so good, so I'm 고민이에요. I'm curious if going beyond fillers makes the area hard and stiff, which might be worse. When I was younger, I didn't have nasolabial folds, but now they are visible, and I pay too much attention to them. I feel like I look much older,ㅠㅠㅠㅠ