One thing about finding a job, you gotta have to get used to rejection. because it's normal, and it's also normal to get frustrated however do not dwell in it, what you got to do, is to find out things that you can improve such as learning new skills, or check back your resume, create a connection in LinkedIn and so on. There's a lot of ways to find a job, not only by going through a job portal.
I wish you all the best from Maukerja Team!