Raeker my lad, I've always known you're a legend and a complex personality, but every time you just beat my previous idea I had of you, amazing.
I'd like to say a couple of stuff regarding this, as I'm in a similar (but very "pettier") situation. I've noticed that taking your whole time and putting it in Gmod is very rewarding due to the people that are grateful and tell you you're amazing; one other reason, is because you realise yourself you can make a turn for the better.
The problrm with this, even if it's so psychologically filling for us... we also often have high aspirations for our real life as well, and this just doesn't help "plain" work. I've grown to hop on gmod after I finish my four to six hour studying, it's just something that helps keep track of real life in combination with Gmod... Fortunately, the community can most likely hold itself for some time, even with the lack of certain key-people. Fortunately.
I'd figure you'd burn yourself up eventually, and it's completely understandable and reasonable. Everyone has limits, and even if you push them, we always have to play around them (reality is a game of chess, isn't it after all?).
Now, regarding your future job... I wish I could say something that would provide an instant solution, but there's no such thing. I don't know what you like, what your personality is like, etc. I can recommend you go to a centre regarding picking jobs -- for the life of me I can't remember what it's called in english, but they're supposed to help you pick a future job based on your personality and talents.
You've probably noticed I haven't been in touch with you alot... I'm just trying to lift that weight off of you, don't think bad of me
Good luck, take a break off teamspeak and gmod for the remaining time just until you pick your very important shit; afterwards, treat this as a part time job for your own mental health and success in life.