Men, I created this account only because I fill that I should answer you.
14 months ago I took the biggest risk in my life so far (I'm 30), I sold everything that I have in Argentina and moved to Spain where I don't know anybody and no connections with anyone.
The first 6 months where horrible, I was reasearching all the pros and cons of different ways of stop existing because of exactly the same reasons that you have. I was refreshing the jobs listings more than 10 times a day in the 4 main webpages without success.
Of the few things that kept me alive was all the problems that I was going to generate because of the "easy way out" (opposite of easy in reality), and the fact that I still have people that I love, although they live 12k km away and is not a cheap fly either (for Argentinians).
The thing is that after hitting the wall over and over again I managed to get a job not related to what I was looking for but it was a job. Shitty pay,shitty shifts, but with good people mostly. I was working at the Madrid airport.
That job gave me enough time to look for something where I'm good at and 6 months later I got that job but never, not even 1 day, I stoped looking for another job.
We are all different but things like going for a walk, some small cardio exercise will help A LOT. And try to research what words do the companies use on their listing and use them on your CV, that's key. 90% of the time they don't have a clue of what they need and they just need a problem solver.
Can't keep on writing as I am arriving to the office. But bro.... Don't give up, if anything, learn from everything and remember that moments like that will harden your mentality.
In Argentina we don't usually say "good luck finding a job", we like to don't leave thing to luck but to hard work and perseverance.
People suck, rrhh mostly sucks, learn their ways and get a job.