Ok, so I don't like going on the Intertubes and whining about my job (seems kind of unprofessional) but I'm at that point. I just don't know what to do. You know that job that you had trouble going to sleep because you knew you'd have to go back in the morning? This is that job.
There are two of us "network guys" supporting a mediumish size institution and remote locations. I'll skip the rest of the disaster that is this place and just focus on my co-worker alone.
I have never seen anyone who can generate stress like my co-worker. We share an office, and him just trying to use a computer over there makes you want to jump out the window. A constant stream of cursing, smashing the keyboard and his computer (case has a crack from him hitting it). One morning he started cursing, threw his breakfast on the carpet, and proceeded to viciously stomp it into oblivion (yeah, egg on carpet). It was kind of funny, but at the same time it was disconcerting. At least four times in the few months I've been here he's thrown his computer and phones off his desk. (I have pictures) I made a note of the make and model computers we use, because they're sure some durable little suckers.
Oh and his drink on the carpet, then repeatedly kicked his poor chair and desk. Can't forget about the chair, you always have to kick the chair. Poor chair.

Oh and he's just TSHOOT away from his CCNP, which he failed once already. (Even though he's dumped his way through them all) I know we're both under a ridiculous amount of stress, but that's just unacceptable. Not a bad guy, just unstable. I think our unofficial title has become "OH F***, OH S***!!"
Anyways, I think our supervisor knows what he's like but turns a blind eye because he's the only one who knows anything about the ancient undocumented spaghetti bowl that is our network. Saying anything will just make it worse for me.
Every single day I almost pull off my badge and walk. It's really dragging me down and it's hard not to get depressed. I've not even mentioned dealing with the other departments, projects, an emo wireless infrastructure, and possessed VoIP system. All old and out of support. Oh, and those
fun little devices known as wireless VoIP handsets.
I've just been holding off because I'm nearing the end of my OSCP studies. The course is tough, but I've been successful so far and have enjoyed it. I think I have what it takes to be in penetration testing. Don't know if I can hang on though, it's just going to keep getting worse as they keep piling the projects on.
I am in the position where I can stay with my parents if I have to. It's tempting to quit and focus all my fire on the OSCP. Then go full-time searching for a sec position. I've considered even trying to get into police work just to get away from the IT world. However, my brain demands something a bit more intellectually stimulating. I'm young, so I have more options than a lot of you old people (30+ yr olds)

So how damaging would it be to have a period of unemployment? Especially if I quit with only maybe a weeks notice. It would only be for a month or two as I finish the OSCP. Of course that would depend on how long it took to find another position...Looked at the military as well, but there's just something about being contractually bound to their every whim that makes me nervous.
I'd also like to just have a rock band, but now
there's an unstable income for you.
Edit:
Wow, the Helpdesk Manager was just in my office getting annoyed at me because I couldn't assign a static IP address to each individual switchport at particular location. Que me trying to explain that switches don't understand IP addresses (except for managment vlan, yes I know that

) and getting a blank aggravated look in return. Couldn't even tell me what he was actually trying to do...