[Question]: Mood swings, feelings of demotivation Do you guys ever have these brief mood swings or feelings of demotivation from one moment to the other?
* The former (mood swings) I mostly noticed during lectures. I'm paying attention (as best as I can), copying from the blackboard and then I suddenly fall into this big hole of negativity. I don't think there are any particular negative thoughts associated with it. I just feel pretty shitty but it just lasts for a few minutes.
Could this be the moment my meds (Ritalin) kick in?

• The latter (demotivation) I'm not to sure about because motivation in general is not an easy thing for us. However this just happened a few hours ago. I had just finished a few small tasks, started writing down a few things for tomorrow and what else I could still do tonight. Afterwards I took a small break to walk our dogs and as soon as I got downstairs, I felt completely demotivated regarding anything I had planned.
  Is this just a "normal" reaction because my brain realised I actually have to do these things? (As planning things is often as close as I get to doing things...)
  

[Story]: Week in retrospect
The retrospect of my (unproductive) week is actually the reason I wanted to post but the above just came to mind beforehand.
I just started to improve a bit on organizing life/university and nearly managed to finish a weekly assignment on time. Then we had a week off (OH MY GOD, PRESS THE PANIC BUTTON!), where I finally wanted to get started on my project. As I had more free time on my hands I figured I could try out a new computer game (Pillars of Eternity), which I wasn't even excited for in the first place. Boy was I wrong...
I spent the rest of the week doing nothing but playing this. I neglected practically everything. Things I needed to do for university. Things I usually do, such as showering, checking my phone, checking Facebook.
Showing a complete lack of self-control (I think) and this reminded me how dangerous too much free time is.

TL;DR #1 Just talking about mood swings and feelings of demotivation. #2 Danger of free time and computer games. (This took me 1h45min to write, when I should be doing other stuff. Still, I need this venting mechanism as talking to people about this is not really an option...)