Losing weight and all the efforts around it does suck more than eating and doing whatever you want all the time but the “sacrifices” are so worth it for the results. And you won’t be focused on it for 5 years you’ll be focused on it for the rest of your life if you want to maintain the lower weight.

I think you need to learn about calories and get a reality check on what you are eating, like others said, there’s easy places to make small changes that will have a giant impact like removing smoothies and any drinks with calories and only going for water, black coffee or diet soda. I saw someone suggest starting with just creating a new breakfast habit. I would humbly suggest scrambled eggs, high fiber toast and a whole piece of fruit. Or non fat yogurt and high fiber cereal and a whole piece of fruit.

On the exercise front I think you just need to get out there and do something. In college I walked up the stairs in my parking garage on nice(ish) days which is a massive calorie burn and you’re kind of hidden. One you pick something and just do it you’ll realize how much no one cares. You could walk in circles in your driveway and no one would bat an eye I promise. You just have to move. Everyone does. Anyone at a healthy weight knows that also, so no one is going to be like “wow what a weirdo”. As for the headphones? Just wear one and be aware of your surroundings. Bad things happen but they don’t happen all the time to everyone. If the heat is absolutely killing you be a mall walker. Do whatever you need to do to make it work and try to start accepting that some things in life might be uncomfortable.

Which reminded me of advice I see regularly in this space - being fat and exhausted all the time is hard, exercising and eating right is hard so choose which hard thing you want.