Trying to improve too many things at once can be detrimental, even setting you back farther than where you began. This can be true even if all the improvements are individually good ideas!
You can try to improve your health with a new diet and exercise regime. You can start a business as a side hustle. You can start dating seriously. And once each of those things are in maintenance mode, they can co-exist. But trying to start all three at the same time is not a good idea.
You can’t rush certain things, and certain things have to be done in order. Take your time – your better life will be there when you arrive.