You need to zoom in on the model to make it larger...If you have a scroll wheel on your mouse, scroll upwards and it will zoom in on the model. Blender is not worthless; it is actually one of the simplest 3D model editing programs to use, and it is also one of the only free ones. Most of your professional modeling programs cost between 3,000 and 10,000 American dollars, so I think you should mess with Blender before going to find 3DSMax or Maya. You need to explore the program and learn it for yourself, or google for Blender tutorials that will give you the basics. We cannot currently give you definitive advice on how to use 3D modeling programs at this time.