"The only thing you can take charge of is the space within the skin of your own body. That's it. Everything (and, especially, everyone) else does not belong to that of which you can take charge. Considering the vastness of the Universe, "the space within the skin of your own body' doesn't sound like much. But consider what's contained in there: your mind, your body, your emotions, and whatever sense of You you've got. That, to paraphrase Sir Thomas More, is not a bad public."
When we are trying to control others, we are missing out on another opportunity to get know ourselves. You should glad you have only you to control, but most of are not. We are too afraid to deal with who we really are, so we hide behind controlling others. If you are a true control freak, you probably run into a lot of resistance and this is just as it should be. Everyone comes here with what they need to do what is necessary for them. As parents, the most we can truly do is guide our children, yet we spend years keeping them dependent on us, then resenting them when they want their own lives.
Be glad you cannot control other people that gives you more time to do you. Get a life. Leave other people's business alone. Stop thinking you know everything, or that you are right all the time. What other people eat don't make you fat and that is how it should be. Live your own life, please!