During a later period of unemployment, I applied for over 2,000 posts. Only 110 bothered to even acknowledge my applications. Out of those, I got just three interviews.
At the first interview I was told that I might well be ideal for the post and got invited to a day's unpaid work trial. On that day, I worked for 13 hours, from 5am to 6pm, without any proper breaks. Then, despite me trying to make contact with the firm, I never heard from them again. (i.e. they couldn't even be bothered to tell me that I'd not got the job).
At the second interview I was told that I'd got the job, subject only to the approval of the 'big boss' when he returned from holiday at the end of the week, and that they'd be in touch the following week. When I didn't hear from them, I phoned the company, only be told that the big boss had decided to reorganise the company and that there was no longer a vacancy. (Once again, they simply couldn't be bothered to let me know).
At the third interview, I was again invited to do a day's unpaid work trial. The boss was so impressed with the work that I'd done by the end of that day (sorting out several problems that he'd been battling with for months) that he asked me to go in for a second (and this time paid) day of work where, once again, he seemed extremely satisfied with my performance. When I didn't hear from him though, I wrote to him, asking to be paid for the second day. He sent a cheque, together with a very apologetic letter, explaining that he couldn't employ me because I was too intelligent for the job!
From then on, until I reached State Pension Age, I NEVER got another full-time job, surviving only on money from unemployment benefit and occasional casual work.
I hope that your luck is better than mine!