What changes did you experience after the filler procedure?

I am a woman in my 20s considering filler injections. I am curious to know how facial volume and contours change after the procedure. I would appreciate it if those who have actually experienced this could share the reactions of those around them and their own satisfaction levels. I would also like to know what precautions I should take or how to care for my skin during the recovery process, and I would like recommendations for trustworthy clinics or doctors. I would love to hear a variety of opinions from everyone!