Unless your current job needs you support and maintain an existing Fox Pro application, don't wast your time on Fox Pro. Instead, Learn MS SQL 2000, 2005 and Oracle. For the client application, learn .NET and Java.
C++ is always useful for low level device programming.
For design tools, learn Adobe software suit instead CorelDraw.
Suggest you first focus on one of the above 3 areas. Select the area most fit into your current job.
You can learn all different skills in the world if you are smart and working hard. However, you need time and chance to gain the real exp to be able to actually "USE" the skills to do something meaningful. It will be a waste if you find that you have no way to use what you learn.
