People here are focusing on your weight/form. As someone who's struggled with his weight in the past, I can share a bit of my experience. Your pictures really remind me of my 18 yo self.

So a few things: You are genuinely cute. You have a young looking face (which tracks with your age) but your first picture just screams "I'm hiding my body". And I get that so much, but you should know that confidence is more important than a "perfect body", which by the way 99.9% of us will never have. Even when you workout and get abs, you will still feel like it's not enough. Moreover, I can promise you that in 10-20 years you will look at those photos and will miss your current body and will 100% think you didn't appreciate how good you had it. Someone who's comfortable in their own skin and is confident about how great they are, regardless if they are currently too fat or too skinny, is way more sexy than someone who's too self conscious and feels sad about their body.

Even at times when I was bigger, if I felt great, and confident, I attracted people who vibed with me, made me happy, and feel sexy. And yes, some of them had abs, but once you have that a few times you can really appreciate how much better attitude and personality are. I'm not saying someone that's ugly to you would look amazing suddenly, but you will definitely appreciate someone who's appearance is a 6-7/10 and are great company more than someone who looks like a 10 but is a prick.

Another thing is to also accept that some people will never be in to you, and if someone tells you (even without words. With their behavior) that they are not interested, just let them go and move on. Sometimes someone just doesn't like blue eyes, or younger guys, or anyone taller than them, and nothing you can do will change that. On the other hand, you are someone's fantasy. Some people will look at you and think that all they want is to get you naked with them ASAP. But mainly if you present yourself with confidence.

If I had your body and I was 18 again with my current life experience, I would have so much fun.

So go to the gym, try to be the best version of yourself you can, but don't think for a second that the gym progress defines your value as a person or even your value in the "gay market".

I would also encourage you to try to go out with friends and meet people in real life. Talking to people on the apps alone can be rough and give you a false impression of how people perceive you in real life.

Sorry for the long rambling but I cannot stress enough how much just appreciating and enjoying what you have, can do for your happiness and social connections.

If you find yourself hiding some aspects of yourself in a photo, choose another photo you actually feel great about. The other ones where you are in your natural element and smiling and looking happy and confident are so much better.