I've realized something is wrong with my disks/drives/partitions structure when I tried countless installing Windows via Bootcamp but it would always fail.
Please take a look at what I have:
This is it. Please let me know if you guys need more information. I just wish to clean up the mess and reset the disk structure to the same one that I'd be getting with a clean install. For instance, I don't know what that "VM" volume is. I dont have a VM. I feel it is all a mess. Also disk2 is just a SD card, nothing wrong with it. Problem lies with disk1.