i am new to 3D modeling in general, and i want to download blender, but i am currently using a family computer, so i don't want to take up too much space. i don't want to download it until after i'm sure of everything, so what am i sacrificing if i download blender like i said? and if i do, how do i install it like that-is there an option during the install process, or is there a seperate file to download on the website?