Tips and Tricks:
- You can just use gmountiso "sudo apt-get install gmountiso" to mount the iso file instead of doing it manually.
- You can just download the "initrd.gz" file instead of manually doing the steps.
- Trying to add security by adding a user rather than the live session user totally messed things up! I couldn't even update my repositories or install any new software
- Some system updates couldn't be installed (don't know why), but after facing some problems which I don't know the source of, I just disabled the automated system update from System->Preferences->Sessions, and whenever I need a new package or something, I just do it manually.