Would getting lip fillers be effective for the asymmetry and volume issues of my lower lip?

I am in my 20s and have been very concerned that whenever I look in the mirror or take photos, my lip line is unusually thin and the shape of the lower lip is asymmetrical, making me look a bit sullen. No matter how hard I try to fill in my lips with an over-lip technique, my natural lips lack volume, so the product looks lifeless, fades quickly, and ends up looking messy. I have been recommended lip fillers as the most popular alternative for naturally balancing the corners of the mouth and adding volume without looking artificial, so I am looking into the procedure.

I heard that this works by instantly correcting the shape and adding volume, so I am writing this post to ask if someone like me, with short horizontal lips and asymmetrical features, can definitely see balanced lip filler effects. I am also curious about how long swelling or bruising typically lasts after the injection, and whether there is a severe foreign body sensation when chewing food or drinking beverages during daily activities.

I'm also a little worried that if it's done incorrectly, it might bulge out too much like a sausage or become see-through. It seems there's a price difference depending on whether it's domestic or imported, but does anyone know how long the effects usually last? Before I schedule an appointment, I would really appreciate some advice on how to care for my lips to avoid bruising or prevent side effects. I'm also curious if everyone gets lip fillers regularly.