Sadly, in your position, it is persistence that counts - you just have to keep trying. Ask at the job centre if somebody can have a look at your CV and also ask if they know of any job clubs in your area. These are where groups of unemployed people get together to support each other and to do things like reviewing CV'a dn interview techniques. Did you know anybody in HR at your old company where you were a supervisor who might talk to you for half an hour for old times sakes and give you some advice. Who knows they may even have HR colleagues they might give a recommendation to about you.
Contacting as many of your friends and old colleagues as you can and see if any of them know where there may be a job can also be a fruitful avenue to follow.
It really is about you trying to keep your head up and keep being positive - if you can, it does come through at interview and gives you a better chance.
Do let us know how you get on - all the best!