The most profitable thing is cooking, but you can't earn it at a low level. The upper limit of vitality is too small, and you can only earn at a high level. Followed by practicing medicine, not bad.
In addition, to build a tailor and practice gold requires fame. If fame is more profitable than cooking and practicing medicine, and this requires physical strength, it will not conflict with cooking. You can learn at the same time (choose one of these three, and you can learn two or three if you have the strength, such as tailoring and practicing gold)
Also, there are new furniture recently, which is also very profitable, but it requires energy and physical strength at the same time. After learning this, you can't learn anything else
I hope this helps.