[spoiler]Quick background info: Just came out of depression caused due to leaving a previous school last year around July(Lasted about 3 and a half years, was incredibly numb this period), and found motivation/goals in life and had a generally awesome few months enjoying all the things I missed out on and enjoying LEARNING things, woohoo! <3
Fast forward to November, and I had started drinking coffee a lot more than usual, this is where my issues started.
They got worse as time passed, and I freaked out wondering what the hell was happening, sadly I didn't know how important sleep is at that time.
Thought I was slipping back into depression and even considered other mental issues and caffeine/sugar sensitivity before finally having the bright idea of looking up what sleep does to you this May(after REALLY bad sleep)!
I know, I am brilliant!(sarcasm~)
Anyways, that's all well and good, and I have been trying to get out of this, rather unsuccessfully. It was good from June to August 14, but then I left the country for a bit and the schedule got messed up again.[/spoiler]

So what exactly is this thread for then, you ask?
I basically want some advice on how to keep a steady sleep schedule and how to deal with the no doubt massive sleep debt I may have incurred in this 1 year!
That and advice on how to deal with the psychological and emotional up and downs that come with this, they are highly severe and interfering in my case, and caused me to fail an exam in April, not to mention I can't enjoy anything properly or play games or W/E properly while I am stuck in this, my performance is ridiculously poor. Let's not even mention memory issues~!
(Which sucks because Doctor Who's 50th anniversary is coming up ;-; )
My over-active imagination literally tends to weave carpets of negativity.
Parents/relatives who (sadly, probably a bit rightfully so) think that I am just making excuses and just being lazy don't exactly help.
Basically I seem to have a lot of cognitive distortions at times when sleep deprived.

Also, my mind seems to love just bringing this up again and again no matter how much proof I find otherwise, but let me ask nonetheless:
There's no chance that all of this may have screwed my emotional etc. wiring completely and permanently right? I can go back to how I used to be and work/play properly...right? ;_;
Seriously, any chance this could have permanently altered my personality?