Yes, the Featherweights forum is for support with exactly what you describe! I personally am very glad this section of 3fc exists. I go in and out of hanging out here though, as I have some issues that come up when I focus on a scale number ... but that's just me.
I have never weighed over the (arbitrary) number that defines "overweight" so yeah, it's hard to get much sympathy from people who have much more weight to lose. But OMG struggling for FIVE years now to lose "just a few pounds" is very frustrating. (I am dealing with hormonal changes apparently that have changed my metabolism completely...). NONE of my clothes fit after gaining 15 lbs. If I get brave enough I want to post photos of me over an 11-pound range (149, 143 and 138 lbs). The difference is SHOCKING, how much 11 pounds can change your entire physique.
Beyond "vanity" reasons, the fact remains that even when someone is not technically overweight, they can be overFAT (me), extremely out of shape cardiovascularly and strength-wise (me) AND with a waist measurement that puts them in the danger zone (me). But anyway, everyone benefits from being vigilant about optimizing their diet and exercise, regardless of their weight.
So yes, come hang out in the Featherweights section! People here totally understand where you're coming from.
In real life, if the topic of weight loss comes up, just focus on aspects of being HEALTHY. Even "skinny" people need to think about being healthy