Congrats on finding a market demand for your products.
Given your somewhat limited experience at this stage, I'd suggest approaching videos with some caution. From what I've seen, so-called "experts" in the YouTube audience can be pretty brutal, and they don't hesitate to jump on people who do something differently than they do.
I've watched a number of these "experts" and wonder sometimes how they get anything done with all the measuring and checking and what ever.... I've had a definition of an "expert" for some time now....
"X" is the unknown quantity, a "Spert" is a drip under pressure.
There are some very knowledgeable turners out there that I watch often and I do learn from them... but I'm not sure there is a right or wrong way to accomplish what we do... if it works for you, it's right for you... if it doesn't work, then it's wrong....
In a 4 hour session on my lathe, I can turn about 4 or 5 bowls from blank to ready to finish. Sizes will range from about 6 inches to about 12 inches diameter... 4 hours is about as long as I ever work, my back starts to give way and my legs and knees start to protest.... I'll go back later after I have a number done and clean up the bottoms... on the bigger bowls it takes a couple of minutes to set up my vacuum chuck so I usually do them in batches. (I don't use the Longworth chuck anymore after not being able to duck fast enough when it released a bowl.)
I also do a lot of pepper mills, I can do a crush grind pepper mill from a raw blank to a ready to finish mill in just about 30 minutes... I don't spend any time measuring, strictly design on the fly...I've watch a couple of videos where the guy took 5 or 6 videos to show how he made one pepper mill....
I do not under any circumstances consider myself an expert... just a guy have fun with my lathe.
My point is, If you have a thick enough skin and are confident to what you are doing, I say go for it and let the "expert critics" have their 15 minutes of fame.