I recently got a job in a new construction and architectural company, and here the specialists actively use AutoCAD in their work process. I hardly used this software before, so now I urgently need to catch up. Any tips?

Maybe you should look for online courses? Now there are many such options for different specialists. Perhaps if you search, you will find something for those who work with AutoCAD.

Online courses are a great idea. In addition, having a teacher or specialist with experience allows you to understand the material much faster. But if you're pressed for time, I recommend starting with this tutorial. This is something like a textbook on AutoCAD for beginners and those who have never worked with this software at all. A good option to quickly get a base.