it’s definitely illegal to pirate software whether you make money from it or not… but honestly, your chances of seeing any consequences are very slim so long as you avoid using something you don’t own commercially, and don’t broadcast your piracy to the world
I don’t blame pirates, because these software packages are obviously priced for corporate environments, not individuals… you have to start somewhere, and educational licenses from most companies are a total pain… I’ve tried a couple of them and they’re just not worth the money and effort with all the limitations they usually impose
I recommend going open source… Blender and Gimp may not be as decked out as Adobe or Autodesk products, but they’ll cover your bases… at the very least, they’ll give you an opportunity to learn concepts in the fields you’re studying without having to pay money… and there are some cheaper softwares that will get the job done as well… Silo is an excellent example… you just have to do some exploration and research
there’s a thread here in the community forum that collects free software, and it has a ton of good stuff… good starting point
as for workflow… I want to learn rendering in Blender, or possibly Modo if I find I have the money sometime… but everything I’ve done so far has been just ZBrush/Photoshop… you can do alot with just these two programs… even a sort of stop-motion animation if you’re really determined 