Throughout the process of creating this animation I encountered many issues, some were fairly easy to solve but others proved to be more difficult. The first major issue I faced was the irregular deformation and unwanted movement of the body when I moved the mouth parts. At the time I solved it by separating the head from body, it was only a lot later that I realized the main issue was that I had not rigged the rest of the body. The takeaway from this experience was that I proceeded too far without fully understanding the software and how the rigging process worked.
The next issue I encountered was by far the worst. As I continued rigging my character I arrived the stage of applying the joint weights, while working on the body I discovered that it caused maya to crash when I tried to select anything else, this was obviously not good, as it made progress very slow. I tried a few different things to fix the problem, I copied what I had into a new project, I tried decreasing the poly count. ultimately I was not able to resolve this issue.
Another problem that arose was that of attaching the controllers to the joint. I tried several times and watched a few different tutorials on the matter but it continued to not work. I ended up leaving it quite late, after watching one last video on how to add the controls, it worked, I believe the issues may have had something to do with the nesting hierarchy, but i am not sure.