>>117957Diet is the most important thing, as others have said already. You're carrying a lot of bodyweight, which makes a lot of exercise far harder. And if the weight in any exercise is too much, priority is to reduce it rather than push through and risk injury.
If you're the kind of person who benefits from structures and a plan to follow, then focusing on macronutrients and calories are your best bet. Here's a rough guide for calculating what yours should be:
https://www.aworkoutroutine.com/how-to-calculate-macros/If that's too much and you'd rather wing it, then just work on cutting out snacks and eating more protein. Its important even if you're not actively working out.
If you can eat better and lose weight, it'll have knock on effects in so many ways, including helping loneliness. Try to focus on that. You want to go farther afield and find greenery, get used to a gym, go to hobby groups and meet people- your body is your friend in all of this. It'll get you where you need to go faithfully if you treat it right.
And lastly, if you're in a city, maybe there's weight loss groups you can join. Nothing to help cut through social etiquette and get to honest friendship more than a sincerely shared goal and struggle.
You can do it. Eat better and you'll have no choice but to lose weight. Everything else you want will be more attainable for it. Good luck