If you wanted to know the number of jobs I was fired from in my twenties, I couldn’t tell you. There are simply too many. 90% of the jobs I held before I reached 30, I was fired from. Fired, but fabulous! There’s nothing wrong with failing, see it as an opportunity to grow - you just have to work that much harder next time. Your life isn’t going to be over, you’re still going to be given opportunities, you just have to be smarter going forward.
I have had some monumental failures in my career, which only made me see where I could improve in the future. If you didn't steal anything, sleep with the (married) boss, or burn the office down, then any career mishaps are likely to be less dramatic than you believe them to be at the time.
I never enjoyed the process of being called into an office to be told I had screwed up and I was no longer an employee, but equally I didn't get overly upset about leaving somewhere that obviously wasn't the right fit. Have you ever been in a job you hated and had anxiety about reaching your place of work each morning? That's not healthy. There's not always an immediate vacancy somewhere else, but if you get the slight inkling things are going sour at work and can't see a way they will improve, start looking for a new position. There's always something else out there, you just have to be open and prepared for that next role.
I would need to write an entire guide on being fired to be able to include the number of occasions I screwed up. The most memorable mishap was the one where a former famous fashion boss was due to meet the CEO of company offering her a multimillion pound contract. He had flown to London to meet said boss, but I had forgotten to tell her and that morning she had gone to Paris. Needless to say, he was furious and she didn’t get the gig. Then there was the time I was employed as a TV presenter and assigned to interview the biggest band of the decade. Only I froze when faced with the prospect of interviewing them, caused thousands of pounds in reshoot costs and was promptly fired as soon as I returned to the office.
Unless you have the ability to walk on water or have a literal Saint as your guardian angel, you’re going to mess up. I would say (as would most of my former bosses) that I messed up more than most. Mistakes happen, you can’t live your life holding on to past disasters waiting for them to happen again, or telling yourself you’re useless. Look, I WAS useless. I lost my boss a MILLION POUNDS. I bet you won’t be able to say that anytime in your career.
Your dream job could be the next one you find yourself in, or you may be looking for some time before something appealing presents itself. All I know from my years of experience is that the right thing comes along eventually - if you don't block opportunities off with negative thinking. There's a job out there for you, trust me. I have felt useless, disheartened, rejected, but if you tell yourself you're never going to find another job, then this type of thinking will act as a block in actually finding that next job.
It can be extremely hard to stay positive when searching for a role or trying to get a lucky break, but you have to continually tell yourself you are worthy of something great. Yes, that old 'stay positive' chestnut. But it works.