I have worked in one kind of job, but realized that it is not the right job for me.I decided to apply for both new kind of jobs and the original type of job, but it seems I am stuck.

For current type of job, I am not good enough. But on the other side, when I apply for new kind of job, I am rejected, probably because I do not have the right job experience/school.

Of course I sent both CV and cover letter, where I explained why I could be suitable for that job.

What should I do now?