For this type of photography, my guess is that the elements of success are:
Camera choice: 10%
Lens choice: 15%
Food prep skills: 25%
Mastery of lighting techniques for glass containers and liquids: 50%
A good book is Light, Science, and Magic
and the Strobist website mentioned in another comment is also very good to study.
For the camera, it might be important to pick one hat you can shoot tethered (connected to a computer) so you can use a big computer monitor or TV screen to preview the shot in the studio.
I'm a portrait photographer primarily. I wouldn't quite say I'm exactly where I want to be, but my photography has improved tenfold in the last 12 months, which I attribute entirely to deliberate effort.
For me, there are two major components- education and practice.
For education, I've proactively worked to educate myself with reading, watching, and asking lots of questions.
Here's a book I found invaluable to understanding light. The main focus is the behavior and characteristics of light, and would be useful for all photographers: https://www.amazon.com/Light-Science-Magic-Introduction-Photographic/dp/0415719402/
Also, following photographers on YouTube/IG/etc. who make work I admire has been greatly helpful. Often, they're available for questions and providing feedback on your own work.
Reading and interacting with the community here has been incredibly useful as well, of course.
For practice, I've worked to establish a feedback loop which enables me to receive critique and evaluation from others I respect. Joe Edelman's TOG Chat group on Facebook provides the most insightful critique I've found and has been invaluable in helping me refine my work.