This year, you should work on being more proud of yourself and stop criticizing yourself so much. You can always find something wrong, but what about all the good things you have done, the improvements you have going on ? Focus on that more.
It's a lot healthier to go for a daily walk than to sign up for a gym membership you won't be using because you hate that kind of exercise. It's a lot healthier to eat a frozen meal than to skip a meal because you were too tired to cook something healthy. It's a lot healthier to take a quick shower than to procrastinate an elaborate routine for days. Don't aim so high that you won't be hitting anything!
Doing things you like is not a waste of time. Watching series, playing video games, listening to podcasts, being creative etc. If it makes you happy, it doesn't matter that you're not productive during that time, what matters is that you are enjoying yourself, generating happiness. Those are the BEST moments. Chilling, relaxing, having fun. Don't let people guilt you into not enjoying the best parts of your day.