Tech is hard and the competition is very crazy, you should not be angry because someone better got the job, at this point upskill yourself, people can try to help you the best way you can, upskilling greatly would attract a lot to you and building your personal brand too, dissapointment is always inevitable but we should always make the best out of it. Everyone is trying to make ends meet too, not everyone can provide serious impact but can be part of the key actors towards your success!