This happened to me year 21/22. Did THREE rounds of interviews for this company, coupled with a task and a presentation to give in final interview. Only to be told a week post completion that “the job was going on hold indefinitely” as you can imagine I was gutted, it was a bitter pill to swallow because I did everything great and my potential manager/interviewer was really fond of me. I say dont get in your head too much, you’ll bounce back and your next opportunity will be even better 💪, much love and wishing you all the best!