johutt:
Can I just get rid of this? Force myself stop thinking about it. Or will I be conflicted and confused until I finally give in?
In my experience that's exactly what's gonna happen. One day you're just gonna have to make the decision. Only after having tried gaining will you be able to know if you want to stop or not. You need to go through the experience of getting the nasty comments from your family before you can actually evaluate if it's worth it or not.
I've been evading gaining all my life, I always thought I was on top of the game. I realised just recently that I was never in control because I was acting based on fear. I was actually being controled by that fear, fear of what others would say or think, of not being able to "go back" and so on.
The truth is that you can never "go back" in life, you can only go forward. And if the things that you decide to do leave a mark in your body, that's the proof that you lived. Yes, maybe it will become hard for you to lose weight if you decide to lose after having gained, but not impossible. Then you'll have the experience that many fat people have when they want to lose weight. Would it be difficult? Perhaps, but if you just go about in life avoiding anything that's not easy, you're gonna regret it even more.
"Choosing" not to gain when you feel the desire to do so (even if it's only unconscious) is not choosing at all, it's just avoiding to choose. I had the perfect chance to gain ten years ago, fresh start by myself in another country, and I didn't do it because I was scared of being fat. I regret it immensely now that I've finally admitted to myself that I really want to be a fat person. All those prejudices are just things that we've learnt from a world that regulates itself arbitrarily and agressively. There's nothing inherently bad or wrong with being fat. And if you're concerned about your health, which is fair, remember that it's always less unhealthy to try it the younger you are. The more you delay it with your doubts, the more time goes on, and the less young you become.
A few years ago I became overweight, just barely with a BMI of 25.1, because of the stress of being in a toxic relationship that isolated me from everyone. When it was over, I went back to my parents' house and my mum would always insist that I had to lñose the weight. It was uncomfortable and I lost it. It wasn't hard, but it took some months to lose the 18 pounds I had put on.
But now I know how it feels to be there, and I liked it immensely, I had never felt so much pleasure in my life. And I've had higher cholesterol being slim than being overweight. Also in retrospective, the ugly comments were irrelevant to living my life, they were just unpleasant to hear.
Finally, attractiveness is not AT ALL about how you look, it's a matter of attitude. I've had instances of failing to attract a girl I liked while being fit when I've felt without confidence, and succeeding easily with a belly when feeling confident. It's about the image you project with your attitude, not about how you look. And to be honest I think there's more closeted people who like chubbier people than they are willing to admit.
I hope this helps.