I'm worried because I can't lose my age-related weight even with diet and exercise.

hello.

Lately, I’ve been trying to cut back on my diet and taking light walks and stretching every day. In the past, I used to lose some weight after just a month or two of managing my weight like this, but these days, the needle on the scale isn't moving at all. In particular, the fat on my belly and upper arms just won't go away; it feels like it's hardened right there.

People around me say it's because my basal metabolic rate has dropped, but I feel like I've reached my limit trying to do this on my own. Would it be helpful to try combining diet herbal medicine or fat-dissolving treatments at a Korean medicine clinic? I have no experience with procedures, so I feel lost on where to start looking into this; that is why I am posting this.