Look its a good quote if you dont think too much about it, okay?
Well there is not such thing as best foot forward to begin with, everything has an upside and a downside.
Even if I go out an cure cancer and abolish poverty, in 10 minutes someone is going to send me an angry message saying "I liked my cancer and having no food to eat, bring it back", thats the way it is. And people who want to find flaws and issue, will due something else.
When I was in high school, the principle always called my parents up with some s**t complains. Then in the last years, I got my s**t together and became one of the leading students, and they still called my parents, only this time to b***h that I had long hair and s**t. There is no winning with some people. However.
In the end of the day, your world is yours, you are the only important person in your life, because in the end of the day, you are the one looking at yourself in the mirror, you are the only one capable of judging yourself fully, as well as know what you did and how you done it. You know your intentions and motivations, and the full picture behind your life.
So because of that, you can not factor the "what if" statement in an irrational matter, because it will eliminate YOU as the key person in YOUR life, and put everyone else (not only that, usually its parties that you do not even know well, such as "random people who might see me") in the center of your life.
And that is just not a healthy lifestyle. I am not saying that you have to not think about other people, because that is a d**k move to do, you have to acknowledge friends and family and so on, however you have to always go "doing this makes me happy and enjoy myself, and I am not harming anyone".
And what you are describing with "I look at that and think "What if a potential business I'd want to be a part of saw this?"...." this is only a problem, when you are not in a consensus with your self and what you do.
These kinds of "threats" have only power unless you give them power. But if you know, that doing your videos and blogs, makes your happy, improves the quality of your life, and gets you of your bed, than so what. That issue becomes meaningless, since you are at "peace", cheesy way of putting it, but cant find another word for it, with yourself.
I hope you see what I mean, since I am not good with words

I usually start waving my hands and making sounds, to express myself