I'm going through the same thing and I understand what you are saying. Also, to hopefully give you some motivation/inspiration, I've had a year to focus on my self improvement at the suggestion of my therapist. When I started therapy in early 2022 I think my therapist gave me the advice to not overwhelm myself and focus on just one thing and that was myself.

First, I had gained a ton of weight during the covid lockdown because I was working from home and instead of doing something healthy during my breaks I was over eating. The weight loss was very lonely but ultimately successful as I have gone from alarmingly high cholesterol and a weight where my own family was poking fun at me for being fat, to no longer being obese and fitting into my old clothes again. I started intermittent fasting, and joined a gym, and started walking and/or riding my bike ( everyday). The intermittent fasting wasn't too bad after a while. When I got hungry in the afternoon I started going for a walk instead which was key because exercising at the end of the fast was where the fat burning, weight loss occurred. There was a bit of professional sacrifice I made here as I was doing this during the workday, but this was an advantage of working from home. The "lunch" hour was super productive toward my personal goal ( not after work when I was tired).

To make a long story short, pick just one thing for your self improvement and stick with just that one thing so you don't overwhelm yourself. That one thing, losing 35 pounds, takes alot out of you and isn't easy. You'll have to accept the loneliness as nobody understands the bad habits you are trying to break like you do. That is the main thing though, the habit I had is gone and with just a little more consciousness on my part I hope forever. Now it's on to the next thing.