Any software as complex as CAD is going to take time to get to grips with. If we, as TC users were to start using ACAD, then we would get frustrated too.
Trying to convert a PDF is always going to be problematic. You can use a PDF as an underlay, but depending on the complexity, it is sometimes easier to convert a PDF to an Image to trace over which I have done in the past.
TurboCAD is a good tool, many of us use it daily and it is good value for money. It is not perfect but I don't think ACAD is either. I think you are trying to do something before understanding the interface and how to do things.
As the saying goes, patience is a virtue....
V2019 Plat 64bit, Lenovo P72 Laptop, Window 10 Pro for Workstations, Intel Xeon E-2186 CPU @ 2.90 Ghz (6 cores/12 threads), 32GB RAM, 512GB & 1TB SSD's, Nvidia P5200 c/w Max=Q Design GPU, Display UHD 3840 x 2160 pixels
TurboCAD user since V3 and Turbocad 3D V1.