Weight Gain Struggles

I'm at this point of my life that I've been trying so hard to gain weight for years since the pandemic, and I felt like nothing's happening. Still 163cm tall and 45lbs. My weight just go around 43-46lbs and that's it. I don't know. I researched a lot, consulted doctors and nutritionists—it feels like nothing's working. And then I have some poeple that I'd share my struggle with and they'll be like "You're being an extra. We're here trying to lose weight and yet you're complaining that you're thin." I felt like, just because I'm thin, means my struggle is somehow less and that I don't feel insecure about my body. Well, thin girls gets body insecurities too. I don't know, I wanted so bad to gain weight. Years. I don't even know if I still want to continue what I'm doing.